4. Communications: electrical
  5. Condition responsive indicating system
  6. Specific condition

Chris Kalmus

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Acoustic wave ice and water detector

Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate

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Acoustic wave touch actuated switch

Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel
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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
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Profile ID: LFUS-PAI-P-2921700

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