Electronic Surveillance Fence Security, Inc.

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Wayzata, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Vibratory and ultrasonic fence intruder detection system
- Patent number 4,209,776
- Issue date Jun 24, 1980
- Electronic Surveillance Fence Security, Inc.
- Richard M. Frederick
- G08 - SIGNALLING
Information Patent Grant
Electronic fence surveillance apparatus
- Patent number 4,097,025
- Issue date Jun 27, 1978
- Electronic Surveillance Fence Security, Inc.
- Charles R. Dettmann
- G08 - SIGNALLING

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