Apparatus for making concrete structures,申请号US19350029112-传众专利搜索

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发明名称	Apparatus for making concrete structures
摘要
申请公布号	US2119648(A)	申请公布日期	1938.06.07
申请号	US19350029112	申请日期	1935.06.29
申请人	THE BEARDSLEY & PIPER COMPANY	发明人	PIPER WALTER F.
分类号	E04F21/10;E21D11/10	主分类号	E04F21/10
代理机构		代理人
主权项
地址

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