4. Electrical audio signal processing systems and devices
  5. Loudspeaker feedback

J. Robert Cassidy, P.S.

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360 degrees surround photon detector/electron multiplier with cy

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

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High power audio subwoofer

Electrical audio signal processing systems and devices – Loudspeaker feedback
Patent

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Packaging system

Package making – Methods – Forming or partial forming a receptacle and subsequent filling
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Rotatable tubular metal liftarm

Ships – Boats – boat component – or attachment
Patent

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Profile ID: LFUS-PAI-P-145272

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