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Year of Publication 28.03.2023
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Year of Publication 26.11.2021
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Year of Publication 26.11.2021
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Year of Publication 23.11.2021
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ZHANG YUN, ZHU JIANHONG, ZHENG YONGPING, XIAO ZHAOHUI, FAN WENFENG, WANG YIQIN, YU GUOWEN
Year of Publication 02.07.2014
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Year of Publication 02.07.2014
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ZHONG ZHENXING, YI YAN, HU MIAN, REN YONGZHENG, LI XIANDA, YU GUOWEN, GUO DABIN, ZHANG BEIPING, LU XIEJUAN
Year of Publication 15.06.2016
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Year of Publication 15.06.2016
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YI YAN, XIANG LIUJIE, HU MIAN, REN YONGZHENG, YU GUOWEN, CHEN XUECHUAN, GUO DABIN, ZHANG BEIPING, LU XIEJUAN
Year of Publication 23.03.2016
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Year of Publication 23.03.2016
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Device for adjusting short sections of oil pipes
SHANG ZHENYUAN, SHI LIPING, MU ZHAOLI, ZHENG ZHILIANG, WANG MEIMING, LI BIN, YU GUOWEN, LI YUN, ZHANG CHENGLIANG
Year of Publication 05.09.2012
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Year of Publication 05.09.2012
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Locking-type fixed spanner
YANG WEIHUA, YU JIQUAN, LIU LEI, LIU WENLONG, HUAI HONGXING, ZHAO DONGYANG, SUN RUNQI, SUN HANJUN, GUO XING, WU SHENGBIN, YU GUOWEN
Year of Publication 01.12.2010
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Year of Publication 01.12.2010
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Buffer type oil tube drift diameter gauge
YU JIQUAN, LU LIN, YUE HONGWEI, SUN RUNQI, SUN HANJUN, GUO XING, YU GUOWEN, WU SHENGBIN, WANG RENJIN, GU JINDONG, ZHANG LIXING
Year of Publication 22.12.2010
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Year of Publication 22.12.2010
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Spheroidal graphite cast-iron integral wheel
JIA SHUGUI, MA BAOSHENG, WANG AILI, LI ZHIGANG, LUO QINGGUO, NIU LIANG, YU GUOWEN, ZHAO TINGYIN, LIU TIANPING, WANG YOULIN
Year of Publication 02.01.2008
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Year of Publication 02.01.2008
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