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Double-decker rail vehicle
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Patent number 11,180,167
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Issue date Nov 23, 2021
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CRRC Qingdao Sifang Co., Ltd.
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Xiaojun Deng
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B61 - RAILWAYS
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2860691
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Patent number 2,860,691
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Issue date Nov 18, 1958
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B61 - RAILWAYS
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2815794
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Patent number 2,815,794
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Issue date Dec 10, 1957
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B61 - RAILWAYS
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2730164
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Patent number 2,730,164
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Issue date Jan 10, 1956
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B60 - VEHICLES IN GENERAL
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2632408
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Patent number 2,632,408
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Issue date Mar 24, 1953
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2560796
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Patent number 2,560,796
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Issue date Jul 17, 1951
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B61 - RAILWAYS
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2502061
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Patent number 2,502,061
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Issue date Mar 28, 1950
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B60 - VEHICLES IN GENERAL
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2180505
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Patent number 2,180,505
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Issue date Nov 21, 1939
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B61 - RAILWAYS
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2130781
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Patent number 2,130,781
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Issue date Sep 20, 1938
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B61 - RAILWAYS
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2130782
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Patent number 2,130,782
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Issue date Sep 20, 1938
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B61 - RAILWAYS
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2130767
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Patent number 2,130,767
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Issue date Sep 20, 1938
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B61 - RAILWAYS
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2066901
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Patent number 2,066,901
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Issue date Jan 5, 1937
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B61 - RAILWAYS
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2018828
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Patent number 2,018,828
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Issue date Oct 29, 1935
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B61 - RAILWAYS
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1899880
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Patent number 1,899,880
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Issue date Feb 28, 1933
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B61 - RAILWAYS
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1879036
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Patent number 1,879,036
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Issue date Sep 27, 1932
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B61 - RAILWAYS
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1853844
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Patent number 1,853,844
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Issue date Apr 12, 1932
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B61 - RAILWAYS
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1803835
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Patent number 1,803,835
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Issue date May 5, 1931
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B61 - RAILWAYS
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1534837
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Patent number 1,534,837
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Issue date Apr 21, 1925
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B61 - RAILWAYS
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544982
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Patent number 544,982
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Issue date Aug 20, 1895
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B60 - VEHICLES IN GENERAL
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544510
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Patent number 544,510
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Issue date Aug 13, 1895
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B60 - VEHICLES IN GENERAL
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534626
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Patent number 534,626
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Issue date Feb 26, 1895
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B60 - VEHICLES IN GENERAL
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475791
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Patent number 475,791
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Issue date May 31, 1892
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B60 - VEHICLES IN GENERAL