4. Geometrical instruments

Gerald D. Stephens

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Antenna coupler for portable cellular telephones

Communications: radio wave antennas – Antennas – With radio cabinet
Patent

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Combined antenna system

Recording – communication – or information retrieval equipment – Video or audio transmission – recording or playback equipment – Element or attachment
Patent

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Modular buzzer with diaphragm molded into housing

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Piezoelectric buzzer device

Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent

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Solderless coaxial cable terminator

Geometrical instruments
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Profile ID: LFUS-PAI-P-476804

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