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经营范围
发明名称
METHOD OF PREPARING METAL SEALING SURFACES
摘要
申请公布号
US3440703(A)
申请公布日期
1969.04.29
申请号
USD3440703
申请日期
1966.12.21
申请人
AJEM LAB. INC.
发明人
ROBERT G. MILLHISER
分类号
F16J15/06;F16J15/08;(IPC1-7):B23P15/00;B24B1/00;B24C1/00
主分类号
F16J15/06
代理机构
代理人
主权项
地址
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