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发明名称
Insert welding rings
摘要
申请公布号
US3033145(A)
申请公布日期
1962.05.08
申请号
US19590794674
申请日期
1959.02.24
申请人
GRINNELL CORPORATION
发明人
THIELSCH HELMUT J.
分类号
B23K9/02;F16L13/02
主分类号
B23K9/02
代理机构
代理人
主权项
地址
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