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74321929 - HYDROSCAN
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Serial number 74321929
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Registration number 1775067
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Filing date Oct 13, 1992
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STI Optronics, Inc.
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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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74098661 - HRL
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Serial number 74098661
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Registration number 1767229
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Filing date Sep 20, 1990
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Spectra Technology, Inc.
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9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments