Leakage preventing means for concrete mixing receptacles,申请号US19310581494-传众专利搜索

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发明名称	Leakage preventing means for concrete mixing receptacles
摘要
申请公布号	US1994010(A)	申请公布日期	1935.03.12
申请号	US19310581494	申请日期	1931.12.16
申请人	CHAIN BELT COMPANY	发明人	BALL CHARLES F.
分类号	B28C5/08	主分类号	B28C5/08
代理机构		代理人
主权项
地址

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