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Lightweight batteries
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Patent number 4,960,655
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Issue date Oct 2, 1990
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Henry F. Hope
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H01 - BASIC ELECTRIC ELEMENTS
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Photographic printer apparatus
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Patent number 4,791,456
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Issue date Dec 13, 1988
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Henry F. Hope
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Mixing apparatus
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Patent number 4,357,110
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Issue date Nov 2, 1982
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Henry F. Hope
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Tanks for mixing apparatus
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Patent number 4,351,613
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Issue date Sep 28, 1982
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Henry F. Hope
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Mixing apparatus
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Patent number 4,332,483
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Issue date Jun 1, 1982
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Henry F. Hope
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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