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发明名称
Method of making composite metal articles
摘要
申请公布号
US1955547(A)
申请公布日期
1934.04.17
申请号
US19320627989
申请日期
1932.08.08
申请人
INGERSOLL STEEL AND DISC CO.
发明人
INGERSOLL STEPHEN L.
分类号
B23K20/233
主分类号
B23K20/233
代理机构
代理人
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地址
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