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75224521 - PHOTAR
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Serial number 75224521
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Filing date Jan 13, 1997
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Rochester Photonics Corporation
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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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75169945 - ENGINEERED DIFFUSERS
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Serial number 75169945
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Registration number 2110155
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Filing date Sep 23, 1996
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Rochester Photonics Corporation
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments