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Traction machine of elevator
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Patent number 4,172,509
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Issue date Oct 30, 1979
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Mitsubishi Denki Kabushiki Kaisha
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Akira Miyagi
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B66 - HOISTING LIFTING HAULING
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1980230
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Patent number 1,980,230
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Issue date Nov 13, 1934
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B66 - HOISTING LIFTING HAULING
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1948746
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Patent number 1,948,746
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Issue date Feb 27, 1934
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B66 - HOISTING LIFTING HAULING
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1924310
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Patent number 1,924,310
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Issue date Aug 29, 1933
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B66 - HOISTING LIFTING HAULING
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1842854
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Patent number 1,842,854
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Issue date Jan 26, 1932
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B66 - HOISTING LIFTING HAULING
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1743919
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Patent number 1,743,919
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Issue date Jan 14, 1930
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B66 - HOISTING LIFTING HAULING
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1738214
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Patent number 1,738,214
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Issue date Dec 3, 1929
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B66 - HOISTING LIFTING HAULING
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1727432
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Patent number 1,727,432
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Issue date Sep 10, 1929
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B66 - HOISTING LIFTING HAULING
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1720840
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Patent number 1,720,840
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Issue date Jul 16, 1929
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B66 - HOISTING LIFTING HAULING
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1686882
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Patent number 1,686,882
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Issue date Oct 9, 1928
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B66 - HOISTING LIFTING HAULING
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1653909
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Patent number 1,653,909
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Issue date Dec 27, 1927
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B66 - HOISTING LIFTING HAULING
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1624260
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Patent number 1,624,260
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Issue date Apr 12, 1927
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B66 - HOISTING LIFTING HAULING
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1624261
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Patent number 1,624,261
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Issue date Apr 12, 1927
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B66 - HOISTING LIFTING HAULING
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1614372
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Patent number 1,614,372
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Issue date Jan 11, 1927
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B66 - HOISTING LIFTING HAULING
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1573256
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Patent number 1,573,256
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Issue date Feb 16, 1926
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B66 - HOISTING LIFTING HAULING
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1543138
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Patent number 1,543,138
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Issue date Jun 23, 1925
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B66 - HOISTING LIFTING HAULING
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1509685
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Patent number 1,509,685
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Issue date Sep 23, 1924
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B66 - HOISTING LIFTING HAULING
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1505699
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Patent number 1,505,699
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Issue date Aug 19, 1924
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B66 - HOISTING LIFTING HAULING
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1480170
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Patent number 1,480,170
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Issue date Jan 8, 1924
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B66 - HOISTING LIFTING HAULING
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1444614
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Patent number 1,444,614
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Issue date Feb 6, 1923
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B66 - HOISTING LIFTING HAULING
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1368103
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Patent number 1,368,103
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Issue date Feb 8, 1921
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B66 - HOISTING LIFTING HAULING
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1346378
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Patent number 1,346,378
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Issue date Jul 13, 1920
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B66 - HOISTING LIFTING HAULING
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1340301
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Patent number 1,340,301
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Issue date May 18, 1920
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B66 - HOISTING LIFTING HAULING
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1334116
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Patent number 1,334,116
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Issue date Mar 16, 1920
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B66 - HOISTING LIFTING HAULING