4. Expansible chamber devices
  5. Abutment connection between working member and power...

Richard M. H. Cheng

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Automatic stirring system for film developing

Agitating – Stirrer within stationary mixing chamber – Magnetic stirrer
Patent

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Fluid operated stepping motor

Expansible chamber devices – Abutment connection between working member and power...
Patent

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Hammer drill adapter

Tool driving or impacting – Drive adjustable to completely change kind of drive – Adjustable to impacting device
Patent

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Profile ID: LFUS-PAI-P-1027018

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