Supporting shell molds during metal pouring operations,申请号US19520282030-传众专利搜索

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发明名称	Supporting shell molds during metal pouring operations
摘要
申请公布号	US2770858(A)	申请公布日期	1956.11.20
申请号	US19520282030	申请日期	1952.04.12
申请人	GENERAL MOTORS CORPORATION	发明人	ANDERSON ARTHUR J.
分类号	B22C23/00	主分类号	B22C23/00
代理机构		代理人
主权项
地址

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