4. Education and demonstration
  5. Means for demonstrating apparatus, product, or surface...
  6. Chalkboard or equivalent means having easily erasable surface

Gordon B. Langford

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Cantilevered deflection sensing system

Electrical resistors – Strain gauge type – Extensometer type
Reexamination Certificate

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Digitizer pad

Telegraphy – Systems – Position coordinate determination for writing
Patent

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Flexible potentiometer

Electrical resistors – Flexible or folding – Element coated on flexible base
Patent

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Flexible potentiometer

Electrical resistors – Flexible or folding – Element coated on flexible base
Patent

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Flexible potentiometer in a horn control system

Electrical resistors – Flexible or folding – Element coated on flexible base
Patent

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Profile ID: LFUS-PAI-P-81213

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