4. Rotary expansible chamber devices
  5. Unlike helical surfaces on relatively wobbling rotating...

John G. Wright

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Elevating jig for semi-conductor wafers and similar articles

Material or article handling – Device for emptying portable receptacle – With jarring means
Patent

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Progressing cavity pump

Rotary expansible chamber devices – Unlike helical surfaces on relatively wobbling rotating...
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Ribbon reinking machine

Typewriting machines – Including interposed inking device for record-medium – Renovation of used ribbon
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Profile ID: LFUS-PAI-P-20597

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