Method of making and assembling expansion shields,申请号US19400314033-传众专利搜索

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发明名称	Method of making and assembling expansion shields
摘要
申请公布号	US2238702(A)	申请公布日期	1941.04.15
申请号	US19400314033	申请日期	1940.01.16
申请人	STAR EXPANSION BOLT COMPANY	发明人	MCINTOSH ROY E.
分类号	B22D19/04	主分类号	B22D19/04
代理机构		代理人
主权项
地址

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