4. Communications: electrical
  5. Land vehicle alarms or indicators
  6. Internal alarm or indicator responsive to a condition of the...

Wayne J. Wehrer

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Acoustic wave touch detection circuit and method

Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
Reexamination Certificate

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Acoustic wave touch detection circuit and method

Telegraphy – Systems – Position coordinate determination for writing
Reexamination Certificate

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Modulated touch entry system and method with synchronous detecti

Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent

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Phototransistor apparatus with current injection ambient compens

Coded data generation or conversion – Digital pattern reading type converter – For x or y coordinate determination
Patent

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Phototransistor apparatus with current injection ambient compens

Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent

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Profile ID: LFUS-PAI-P-1018049

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