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For the Inventor, By the Inventor

Geneva, Switzerland

Multiphonie S.a.


USPTO Granted Patents = 1

Forward Citations = 28

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1 inventor (with patents filed for the assignee):

goldMedal Marcel Fresard (1 out of 15 patents)


1 patent:

1. 4506117 - Electroacoustic transducer (1985-03-19),
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USPTO Data Jan 1 1976 - Sep 29 2026

1 Patents

#186 in Geneva

#4,725 in Switzerland

Geneva, CH
Geneva, Switzerland

Multiphonie S.a.

Forward Citations = 28

1 inventor:

goldMedal Marcel Fresard (1 out of 15 patents)

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