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Screw type vacuum pump

Pumps – Successive stages – With interstage discharge or additional discharge from...
Reexamination Certificate

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Scroll compressors

Pumps – Successive stages – With interstage intake or additional inlet to latter stage
Patent

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Self lubricating, two stage variable compressor

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Self-propelled vacuum pump

Pumps – Successive stages – Fluid motor for one stage supplied from another stage
Reexamination Certificate

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Series connected primary and booster compressors

Pumps – Successive stages – With interstage intake or additional inlet to latter stage
Patent

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Severe service compressor system

Pumps – Successive stages
Patent

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Single-piston, multi-mode fluid displacement pump

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Small temperature differential heat-powered compressor

Pumps – Successive stages – Condition responsive control of fluid
Patent

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Steam-generator and gas-compressor systems using water-based...

Pumps – Successive stages – With interstage discharge or additional discharge from...
Reexamination Certificate

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Straight cylinder gas compressor with a reduced diameter compres

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Synchronized mixing pump

Pumps – Successive stages – With interstage intake or additional inlet to latter stage
Patent

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