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Controlled light source
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Patent number 4,431,947
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Issue date Feb 14, 1984
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The Singer Company
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Lincoln Ferriss
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Three axis gyro
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Patent number 4,189,946
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Issue date Feb 26, 1980
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The Singer Company
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Jay Hoffman
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G01 - MEASURING TESTING
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Electrostatic accelerometer
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Patent number 4,102,202
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Issue date Jul 25, 1978
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The Singer Company
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Lincoln Stark Ferriss
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G01 - MEASURING TESTING
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Electrostatic motor
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Patent number 3,951,000
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Issue date Apr 20, 1976
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The Singer Company
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Lincoln S. Ferriss
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G01 - MEASURING TESTING