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Line voltage monitor system
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Patent number 4,558,275
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Issue date Dec 10, 1985
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The Superior Electric Company
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Dennis M. Borowy
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G01 - MEASURING TESTING
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Line disturbance monitor
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Patent number 4,484,290
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Issue date Nov 20, 1984
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Ferranti plc
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Jeffrey L. Bagnall
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G01 - MEASURING TESTING
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Waveform searching system
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Patent number 4,399,512
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Issue date Aug 16, 1983
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Iwasaki Tsushinki Kabushiki Kaisha
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Masafumi Soma
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G01 - MEASURING TESTING
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Remote lightning monitor system
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Patent number 4,105,966
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Issue date Aug 8, 1978
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The United States of America as represented by the administrator of the Natio...
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Carl L. Lennon
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G01 - MEASURING TESTING
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3795861
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Patent number 3,795,861
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Issue date Mar 5, 1974
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G01 - MEASURING TESTING
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3772679
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Patent number 3,772,679
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Issue date Nov 13, 1973
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3653027
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Patent number 3,653,027
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Issue date Mar 28, 1972
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G01 - MEASURING TESTING
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3629852
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Patent number 3,629,852
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Issue date Dec 21, 1971
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G01 - MEASURING TESTING
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3439214
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Patent number 3,439,214
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Issue date Apr 15, 1969
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G01 - MEASURING TESTING
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3284804
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Patent number 3,284,804
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Issue date Nov 8, 1966
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G01 - MEASURING TESTING
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3166375
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Patent number 3,166,375
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Issue date Jan 19, 1965
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G01 - MEASURING TESTING
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2924777
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Patent number 2,924,777
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Issue date Feb 9, 1960
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G01 - MEASURING TESTING