RAILWAY DRAFT APPLIANCE,申请号USD3598249-传众专利搜索

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发明名称	RAILWAY DRAFT APPLIANCE
摘要
申请公布号	US3598249(A)	申请公布日期	1971.08.10
申请号	USD3598249	申请日期	1969.01.27
申请人	A.O. SMITH CORP.	发明人	HAROLD E. VICKERMAN
分类号	B61G9/08;(IPC1-7):B61G9/12;B61G11/12	主分类号	B61G9/08
代理机构		代理人
主权项
地址

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