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发明名称
Welding work centering chuck
摘要
申请公布号
US3233910(A)
申请公布日期
1966.02.08
申请号
US19630280466
申请日期
1963.05.14
申请人
PFAFF LLOYD A
发明人
PFAFF LLOYD A.
分类号
B23K37/04
主分类号
B23K37/04
代理机构
代理人
主权项
地址
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