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Aerial tramway installation
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Patent number 5,081,932
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Issue date Jan 21, 1992
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Von Roll Transportsysteme AG
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Gottfried Hofmann
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B61 - RAILWAYS
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Evacuation slide
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Patent number 4,723,628
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Issue date Feb 9, 1988
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The B. F. Goodrich Company
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John M. Fisher
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Aspirator
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Patent number 4,368,009
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Issue date Jan 11, 1983
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The B. F. Goodrich Company
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John F. Heimovics
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Passenger evacuation apparatus
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Patent number 4,164,990
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Issue date Aug 21, 1979
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Waggonfabrik Uerdingen Aktiengesellschaft
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Christian Stiefel
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B66 - HOISTING LIFTING HAULING
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3827368
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Patent number 3,827,368
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Issue date Aug 6, 1974
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B61 - RAILWAYS
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3742864
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Patent number 3,742,864
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Issue date Jul 3, 1973
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E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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3703218
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Patent number 3,703,218
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Issue date Nov 21, 1972
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A62 - LIFE-SAVING FIRE-FIGHTING
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3702124
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Patent number 3,702,124
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Issue date Nov 7, 1972
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3380084
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Patent number 3,380,084
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Issue date Apr 30, 1968
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B61 - RAILWAYS
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3192872
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Patent number 3,192,872
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Issue date Jul 6, 1965
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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1935711
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Patent number 1,935,711
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Issue date Nov 21, 1933
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A62 - LIFE-SAVING FIRE-FIGHTING
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1684251
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Patent number 1,684,251
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Issue date Sep 11, 1928
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E21 - EARTH DRILLING MINING
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654687
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Patent number 654,687
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Issue date Jul 31, 1900
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B61 - RAILWAYS
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301923
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Patent number 301,923
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Issue date Jul 15, 1884
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B61 - RAILWAYS