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发明名称
METHOD FOR REDUCING METAL CASTING POROSITY
摘要
申请公布号
US3420291(A)
申请公布日期
1969.01.07
申请号
USD3420291
申请日期
1965.12.29
申请人
TRW INC.
发明人
GEORGE D. CHANDLEY;STUART Z. URAM
分类号
B22D27/13;(IPC1-7):B22D23/00
主分类号
B22D27/13
代理机构
代理人
主权项
地址
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