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Revolving vane pump-motor-meter with a toroidal working chamber

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Rotates about non-parallel axis
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Roller pump with radial members

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
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Roller vane pump

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
Reexamination Certificate

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Roller vane pump having a partly curved vane slot

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
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Roller vane pump having straight line segments on the rotor

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
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Roller vane pump incorporating a bearing bush

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
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Rotary engine with inlet and outlet valves

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
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Rotary expander

Rotary expansible chamber devices – Vane or abutment comprises rotatable element
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Rotary fluid-handling mechanism

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Rotates about non-parallel axis
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Rotary fluid-handling mechanism

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Rotates about non-parallel axis
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Rotary pump/engine

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Positively rotated
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Rotary vane mechanical power system utilizing positive displacem

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Positively rotated
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Rotary vane-type pump

Rotary expansible chamber devices – Vane or abutment comprises rotatable element – Rotates about non-parallel axis
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