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System for producing orthophotographs
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Patent number 4,170,415
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Issue date Oct 9, 1979
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The United States of America as represented by the Secretary of the Interior
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George P. Lemeshewsky
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G01 - MEASURING TESTING
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3884564
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Patent number 3,884,564
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Issue date May 20, 1975
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3749492
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Patent number 3,749,492
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Issue date Jul 31, 1973
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G01 - MEASURING TESTING
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2960771
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Patent number 2,960,771
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Issue date Nov 22, 1960
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B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
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2227835
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Patent number 2,227,835
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Issue date Jan 7, 1941
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G01 - MEASURING TESTING