LandOfFree - US Patents - Listing for Rotary expansible chamber devices,Multistage

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Two-stage screw auger pumping apparatus

Rotary expansible chamber devices – Multistage – Interengaging rotary members

Patent

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Two-stage screw compressor

Rotary expansible chamber devices – Multistage – Interengaging rotary members

Reexamination Certificate

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Unitary sliding vane compressor-expander and electrical...

Rotary expansible chamber devices – Multistage – Sliding vane

Reexamination Certificate

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Vacuum exhaust apparatuses and vacuum exhaust methods

Rotary expansible chamber devices – Multistage

Reexamination Certificate

[ 0.00 ] – not rated yet Voters 0 Comments 0

Vacuum pump having rotation body cleaning unit with spraying...

Rotary expansible chamber devices – Multistage – Interengaging rotary members

Reexamination Certificate

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Vacuum pump oiling

Rotary expansible chamber devices – Multistage – Sliding vane

Patent

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Vacuum pump systems

Rotary expansible chamber devices – Multistage – Interengaging rotary members

Patent

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Vacuum pumps

Rotary expansible chamber devices – Multistage – Sliding vane

Patent

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Vane control bearing assembly

Rotary expansible chamber devices – Multistage – Sliding vane

Patent

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Vane-type compressor exhibiting efficiency improvements and low

Rotary expansible chamber devices – Multistage – Sliding vane

Patent

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Variable capacity rolling piston compressor

Rotary expansible chamber devices – Multistage – One working chamber stage encircles another

Patent

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Wellbore motor system

Rotary expansible chamber devices – Multistage – Sliding abutment

Patent

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