Pavement marker,申请号US19280290321-传众专利搜索

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发明名称	Pavement marker
摘要
申请公布号	US1830319(A)	申请公布日期	1931.11.03
申请号	US19280290321	申请日期	1928.07.05
申请人	HARTZLER MELVIN E;ROMILLY EDGAR P	发明人	HARTZLER MELVIN E.;ROMILLY EDGAR P.
分类号	E01F9/06	主分类号	E01F9/06
代理机构		代理人
主权项
地址

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