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发明名称
Method of impregnation
摘要
申请公布号
US2606831(A)
申请公布日期
1952.08.12
申请号
US19500156619
申请日期
1950.04.18
申请人
GENERAL MOTORS CORPORATION
发明人
KOEHRING ROLAND P.
分类号
B22F3/26
主分类号
B22F3/26
代理机构
代理人
主权项
地址
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