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Remote monitoring system
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Patent number 6,275,159
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Issue date Aug 14, 2001
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Electronic Monitoring Systems, Inc.
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Douglas A. Pinnow
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G07 - CHECKING-DEVICES
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Remote monitoring system
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Patent number 6,130,620
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Issue date Oct 10, 2000
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Electronic Monitoring Systems, Inc.
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Douglas A. Pinnow
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G07 - CHECKING-DEVICES
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Operator lockout prevention device
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Patent number 4,942,747
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Issue date Jul 24, 1990
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Universal Photonix, Inc.
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Douglas A. Pinnow
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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