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Method and apparatus for increasing the efficiency of a...

Pumps – Successive stages
Reexamination Certificate

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Method and apparatus for increasing the efficiency of a...

Pumps – Successive stages
Reexamination Certificate

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Micropump assembly for a microgas chromatograph and the like

Pumps – Successive stages
Reexamination Certificate

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Mix blending pump

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Modular air compression apparatus with separate platform...

Pumps – Successive stages
Reexamination Certificate

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Motor pump family with single stage and multiple stage impellers

Pumps – Successive stages – Stages driven by relatively movable motor working members
Patent

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Multi-cylinder compressor having plural intake ports in a...

Pumps – Successive stages – Reciprocating rigid stages
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Multi-stage compressor

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Multi-stage compressor

Pumps – Successive stages – Stages driven by relatively movable motor working members
Reexamination Certificate

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Multi-stage compressor

Pumps – Successive stages – Stages driven by relatively movable motor working members
Reexamination Certificate

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Multi-stage compressor capacity control apparatus

Pumps – Successive stages – Condition responsive control of fluid
Patent

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Multi-stage compressor with continuous capacity control

Pumps – Successive stages – Condition responsive control of fluid
Patent

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Multi-stage hydraulic pump

Pumps – Successive stages – With interstage discharge or additional discharge from...
Patent

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Multi-stage manual hydraulic pump

Pumps – Successive stages – With interstage discharge or additional discharge from...
Patent

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Multi-stage pump

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Multi-stage pump device

Pumps – Successive stages
Reexamination Certificate

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Multi-stage reciprocating vacuum pump and method of...

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

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Multi-stage vacuum pump

Pumps – Successive stages – Reciprocating rigid stages
Patent

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Multi-stage vacuum pump

Pumps – Successive stages
Reexamination Certificate

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Multi-stage, reciprocating, positive displacement compressor

Pumps – Successive stages – Reciprocating rigid stages
Patent

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