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发明名称
Positioning means
摘要
申请公布号
US2460671(A)
申请公布日期
1949.02.01
申请号
US19450625990
申请日期
1945.11.01
申请人
BENEDICK JOSEPH M
发明人
BENEDICK JOSEPH M.
分类号
B23K7/00
主分类号
B23K7/00
代理机构
代理人
主权项
地址
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