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3383983
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Information
Patent Grant
3383983
References
Source
Patent Number
3,383,983
Date Filed
Not available
Date Issued
Tuesday, May 21, 1968
56 years ago
CPC
G04D7/004 - Optical measuring and testing apparatus
G01B11/14 - for measuring distance or clearance between spaced objects or spaced apertures
G02B21/0016 - Technical microscopes
US Classifications
356 - Optics: measuring and testing
033 - Geometrical instruments
073 - Measuring and testing
353 - Optics: image projectors
968 - Horology
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