4. Amusement devices: toys
  5. Operated by relatively moving fluid or pressure differential
  6. Including variable-size fluid chamber to move fluid

Robert Hudson

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Animated novelty device

Amusement devices: toys – Operated by relatively moving fluid or pressure differential – Including variable-size fluid chamber to move fluid
Patent

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Metal spinning machine carriage and process for the operation of

Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent

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Sampling equipment for sedimentation rate measuring

Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent

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Profile ID: LFUS-PAI-P-1226710

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