4. Measuring and testing
  5. Instrument proving or calibrating
  6. Volume of flow, speed of flow, volume rate of flow, or mass...

Willis G. Boyden

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Adjustable windmobile

Land vehicles – Simulations of the velocipede type – Occupant propelled
Patent

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Boat sinking warning device

Communications: electrical – Watercraft alarm or indicating systems
Patent

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Current sensing alarm circuit for a motor vehicle

Communications: electrical – Selective – Having indication or alarm
Patent

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Pitch/tension device

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent

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Skate cushioning device

Land vehicles – Skates – Wheeled skate
Patent

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Profile ID: LFUS-PAI-P-139616

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