4. Gas and liquid contact apparatus
  5. Contact devices
  6. Porous sheet

Henry T. Hetzel

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Aperture capacitor pickup

Telegraphy – Systems – Position coordinate determination for writing
Patent

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Atmometer covering and method

Gas and liquid contact apparatus – Contact devices – Porous sheet
Patent

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Controllable cursor vacuum hold down

Telegraphy – Systems – Position coordinate determination for writing
Patent

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Fluid flow apparatus with capacitive sensors

Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
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Hour meter activated by magnetic influence

Horology: time measuring systems or devices – Controlled by a disparate device – Electrical device
Patent

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Profile ID: LFUS-PAI-P-486508

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