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发明名称
Subaqueous end welding device
摘要
申请公布号
US2307026(A)
申请公布日期
1943.01.05
申请号
US19400362714
申请日期
1940.10.25
申请人
CRECCA JOHN D
发明人
CRECCA JOHN D.
分类号
B23K9/20
主分类号
B23K9/20
代理机构
代理人
主权项
地址
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