Apparatus for building roadways and the like,申请号US19540452314-传众专利搜索

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发明名称	Apparatus for building roadways and the like
摘要
申请公布号	US3005387(A)	申请公布日期	1961.10.24
申请号	US19540452314	申请日期	1954.08.26
申请人	THE HELTZEL STEEL FORM & IRON COMPANY	发明人	HELTZEL DONALD T.;HUDIS MICHAEL I.
分类号	E01C19/42	主分类号	E01C19/42
代理机构		代理人
主权项
地址

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