John D. Freeman

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Westport, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
Intruder alarm
- Patent number 4,166,428
- Issue date Sep 4, 1979
- General Time Corporation
- John D. Freeman
- G08 - SIGNALLING
Information Patent Grant
Display apparatus for automotive vehicles
- Patent number 4,031,363
- Issue date Jun 21, 1977
- General Time Corporation
- John D. Freeman
- G06 - COMPUTING CALCULATING COUNTING