4. Electrical audio signal processing systems and devices
  5. Electro-acoustic audio transducer
  6. Plural or compound reproducers

Neil Johan Schmertmann

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Desktop storage enclosure

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file
Patent

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Planar film speaker with inertial driver

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Plural or compound reproducers
Patent

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Reaction propulsion motor and apparatus for using the same

Electrical generator or motor structure – Dynamoelectric – Linear
Patent

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Selective call message entry device

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Elevator signal or call unit
Patent

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Profile ID: LFUS-PAI-P-1399159

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