4. Music
  5. Instruments

Sayre A. Swarztrauber

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Method and system for radio-frequency signal coupling to...

Communications: electrical – Systems – Selsyn type
Reexamination Certificate

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Music tone generator

Music – Instruments
Patent

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Squeeze switch particularly adapted for use with stuffed toys

Electricity: circuit makers and breakers – Special application
Patent

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System and method for on-line monitoring and billing of...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate

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System and method for on-line monitoring and billing of...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate

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Profile ID: LFUS-PAI-P-1923523

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