Concrete placing equipment,申请号US19300461498-传众专利搜索

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发明名称	Concrete placing equipment
摘要
申请公布号	US1921351(A)	申请公布日期	1933.08.08
申请号	US19300461498	申请日期	1930.06.16
申请人		发明人	WOLFE MARK C. DE
分类号	B66C23/20	主分类号	B66C23/20
代理机构		代理人
主权项
地址

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