4. Music
  5. Instruments
  6. Electrical musical tone generation

William W. Shier

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Air cylinder controller

Data processing: generic control systems or specific application – Specific application – apparatus or process – Specific application of pressure responsive control system
Reexamination Certificate

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Electronic sound generating toy

Music – Instruments – Electrical musical tone generation
Patent

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Wireless communication system for a roll-up door

Electricity: motive power systems – Motor-reversing – Automatic and/or with time-delay means
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2006813

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