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Optical projection system
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Patent number 9,557,653
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Issue date Jan 31, 2017
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Carl Zeiss SMT GmbH
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Johannes Rau
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Culture observation apparatus
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Patent number 7,910,355
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Issue date Mar 22, 2011
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Olympus Corporation
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Atsuhiro Tsuchiya
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C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
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Bellows
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Patent number 4,662,734
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Issue date May 5, 1987
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Kabushiki Kaisha Sakai Tokushu Camera Seisakusho
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Masahiro Nishi
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G02 - OPTICS
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Bellows
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Patent number 4,579,045
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Issue date Apr 1, 1986
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Fuji Electric Company, Ltd.
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Hiroshi Tominaga
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G02 - OPTICS
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Photographic bellows unit
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Patent number 4,331,408
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Issue date May 25, 1982
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VEB Pentacon Dresden Kamera-und Kinowerke
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Siegfried Zeibig
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G02 - OPTICS
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3721687
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Patent number 3,721,687
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Issue date Mar 20, 1973
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE