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85258380 - HYDRA-ELECTRIC SENSORS
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Serial number 85258380
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Filing date Mar 4, 2011
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Hydra-Electric Company
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
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72195668 - VISTASCOPE
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Serial number 72195668
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Registration number 785996
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Filing date Jun 15, 1964
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HYDRA-ELECTRIC COMPANY
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments