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Towing apparatus
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Patent number 9,783,207
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Issue date Oct 10, 2017
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Innova Patent GmbH
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Roland Rider
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B61 - RAILWAYS
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-
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Ski lift
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Patent number 3,942,452
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Issue date Mar 9, 1976
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Alpine Valley Resort, Inc.
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Truman C. Peck
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B61 - RAILWAYS
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3791469
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Patent number 3,791,469
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Issue date Feb 12, 1974
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B61 - RAILWAYS
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3620168
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Patent number 3,620,168
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Issue date Nov 16, 1971
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B61 - RAILWAYS
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3307494
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Patent number 3,307,494
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Issue date Mar 7, 1967
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B66 - HOISTING LIFTING HAULING
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2690230
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Patent number 2,690,230
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Issue date Sep 28, 1954
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B61 - RAILWAYS
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2646005
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Patent number 2,646,005
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Issue date Jul 21, 1953
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B61 - RAILWAYS