Sand mold patterns formed of porous or permeable metal,申请号US19630317189-传众专利搜索

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发明名称	Sand mold patterns formed of porous or permeable metal
摘要
申请公布号	US3303535(A)	申请公布日期	1967.02.14
申请号	US19630317189	申请日期	1963.10.18
申请人	OWENS DEVELOPMENT CORPORATION	发明人	REARWIN EARL M.;JACKSON WILLIAM R.
分类号	B22C11/10	主分类号	B22C11/10
代理机构		代理人
主权项
地址

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