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发明名称
Material for intiating a welding arc
摘要
申请公布号
US2138025(A)
申请公布日期
1938.11.29
申请号
US19360086152
申请日期
1936.06.19
申请人
CRECCA JOHN D;SCOTT SAMUEL S
发明人
CRECCA JOHN D.;SCOTT SAMUEL S.
分类号
B23K9/20
主分类号
B23K9/20
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