4. Expansible chamber devices
  5. Piston

Collins Solomon Jr.

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Adjustable piston pump

Expansible chamber devices – Piston
Reexamination Certificate

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Flat plate back pressure regulator

Valves and valve actuation – Fluid actuated or retarded – Flexible wall expansible chamber reciprocating valve actuator
Patent

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Protective guard and pick holder for musical instruments

Music – Instruments – Stringed
Reexamination Certificate

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Protective string guard with pick holder

Musical instruments – String instrument – Element or attachment
Design Patent

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Profile ID: LFUS-PAI-P-3084945

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