4. Excavating
  5. Rotary digger
  6. Endless conveyor

John F. Bryan, Jr.

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Attachment for sucker rod depth adjustment

Machine element or mechanism – Mechanical movements – Rotary to or from reciprocating or oscillating
Patent

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Bucket chain excavator

Excavating – Ditcher – With side or auxiliary cutter
Patent

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Carpet seam cutter

Cutting – Tool or tool with support – Cutting couple type
Patent

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Combustible atmosphere furnace control system

Furnaces – With control means responsive to a sensed condition – Feed control
Patent

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Digging chain vibratory system

Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent

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Profile ID: LFUS-PAI-P-215368

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