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Proximity control system
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Patent number 4,947,759
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Issue date Aug 14, 1990
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Tele Engineering, Inc.
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Robert J. Uhl
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B61 - RAILWAYS
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Electric monorail conveyor
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Patent number 4,941,555
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Issue date Jul 17, 1990
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Seiwert Stahl- und Apparatebau GmbH
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Eloy da Silva Antunes
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B61 - RAILWAYS
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Aerial transport system
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Patent number 4,345,522
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Issue date Aug 24, 1982
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Nissan Motor Company, Limited
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Keiichi Miyamoto
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B60 - VEHICLES IN GENERAL
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3823673
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Patent number 3,823,673
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Issue date Jul 16, 1974
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B60 - VEHICLES IN GENERAL
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3596086
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Patent number 3,596,086
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Issue date Jul 27, 1971
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B61 - RAILWAYS
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3083296
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Patent number 3,083,296
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Issue date Mar 26, 1963
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B61 - RAILWAYS
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2211579
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Patent number 2,211,579
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Issue date Aug 13, 1940
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B61 - RAILWAYS
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1826492
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Patent number 1,826,492
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Issue date Oct 6, 1931
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B61 - RAILWAYS
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1775422
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Patent number 1,775,422
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Issue date Sep 9, 1930
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B61 - RAILWAYS
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1723835
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Patent number 1,723,835
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Issue date Aug 6, 1929
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B61 - RAILWAYS
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1572137
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Patent number 1,572,137
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Issue date Feb 9, 1926
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B61 - RAILWAYS
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1523805
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Patent number 1,523,805
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Issue date Jan 20, 1925
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B61 - RAILWAYS
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1432325
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Patent number 1,432,325
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Issue date Oct 17, 1922
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B61 - RAILWAYS
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1385059
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Patent number 1,385,059
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Issue date Jul 19, 1921
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B61 - RAILWAYS
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1383362
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Patent number 1,383,362
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Issue date Jul 5, 1921
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B61 - RAILWAYS
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1353436
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Patent number 1,353,436
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Issue date Sep 21, 1920
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B61 - RAILWAYS
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1345816
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Patent number 1,345,816
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Issue date Jul 6, 1920
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B61 - RAILWAYS