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Apparatus for machining valve seats in an engine cylinder head

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Frictionally engaging sides of opening in work
Patent

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Apparatus for machining, especially drilling of structural...

Cutting by use of rotating axially moving tool – Machine including plural tools – Coaxial tools
Reexamination Certificate

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Apparatus for making a drilled hole with an undercut

Cutting by use of rotating axially moving tool – Tool-support with means to move tool relative to tool-support – To move radially
Patent

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Apparatus for making aligned inclined holes in work pieces

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Adjustable – tool-guiding jig
Reexamination Certificate

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Apparatus for making holes in arm sections of structural compone

Cutting by use of rotating axially moving tool – With signal – indicator – illuminator or optical means
Patent

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Apparatus for making numerous holes in a tube

Cutting by use of rotating axially moving tool – Machine including plural tools – Coaxial tools
Reexamination Certificate

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Apparatus for mounting a drill on a pipe

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Reexamination Certificate

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Apparatus for mounting a drill on a pipe

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Patent

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Apparatus for mounting a drill on a pipe

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Reexamination Certificate

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Apparatus for mounting a drill on a pipe

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Reexamination Certificate

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Apparatus for mounting a drill on a pipe

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Reexamination Certificate

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Apparatus for orientation of tool on workpiece

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Patent

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Apparatus for perforating a workpiece

Cutting by use of rotating axially moving tool – With control means energized in response to activator... – To control relative positioning of tool and work
Patent

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Apparatus for performing machining operations in poorly accessib

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support – Having tool-opposing – work-engaging surface
Patent

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Apparatus for positioning a cutter of a tool relative to the...

Cutting by use of rotating axially moving tool – Tool-support with means to move tool relative to tool-support – To move radially
Reexamination Certificate

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Apparatus for positioning tools

Cutting by use of rotating axially moving tool – With means to regulate operation by use of templet – tape,...
Patent

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Apparatus for precision line boring of engines and like mechanis

Cutting by use of rotating axially moving tool – With work-engaging structure other than tool or tool-support
Patent

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Apparatus for preparing corrugated sheets automatically

Cutting by use of rotating axially moving tool – Combined cutting means – Plural other type cutting means
Patent

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Apparatus for preparing furniture backs and cushions for tufting

Cutting by use of rotating axially moving tool – Processes – Bit detachable
Patent

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Apparatus for preventing invasion of cutting liquid in replaceab

Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product
Patent

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