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Mask repair system
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Patent number 4,906,326
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Issue date Mar 6, 1990
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Canon Kabushiki Kaisha
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Mitsuaki Amemiya
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3850639
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Patent number 3,850,639
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Issue date Nov 26, 1974
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3813249
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Patent number 3,813,249
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Issue date May 28, 1974
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3514289
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Patent number 3,514,289
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Issue date May 26, 1970
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3488707
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Patent number 3,488,707
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Issue date Jan 6, 1970
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3459580
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Patent number 3,459,580
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Issue date Aug 5, 1969
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C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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3382071
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Patent number 3,382,071
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Issue date May 7, 1968
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3282696
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Patent number 3,282,696
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Issue date Nov 1, 1966
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C07 - ORGANIC CHEMISTRY
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3203800
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Patent number 3,203,800
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Issue date Aug 31, 1965
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C07 - ORGANIC CHEMISTRY
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3113867
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Patent number 3,113,867
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Issue date Dec 10, 1963
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3065098
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Patent number 3,065,098
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Issue date Nov 20, 1962
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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3058826
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Patent number 3,058,826
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Issue date Oct 16, 1962
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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2899339
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Patent number 2,899,339
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Issue date Aug 11, 1959
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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1257682
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Patent number 1,257,682
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Issue date Feb 26, 1918
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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1205822
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Patent number 1,205,822
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Issue date Nov 21, 1916
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B32 - LAYERED PRODUCTS