Concrete pipe mold,申请号US19490075638-传众专利搜索

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发明名称	Concrete pipe mold
摘要
申请公布号	US2579801(A)	申请公布日期	1951.12.25
申请号	US19490075638	申请日期	1949.02.10
申请人	MAURICE CROM JOHN;CURZON DOBELL	发明人	CROM JOHN MAURICE;DOBELL CURZON
分类号	B28B21/20;B28B21/76	主分类号	B28B21/20
代理机构		代理人
主权项
地址

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