Box-car door,申请号US19260080277-传众专利搜索

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发明名称	Box-car door
摘要
申请公布号	US1746749(A)	申请公布日期	1930.02.11
申请号	US19260080277	申请日期	1926.01.09
申请人	VIBERG ERNEST R	发明人	VIBERG ERNEST R.
分类号	B61D19/00	主分类号	B61D19/00
代理机构		代理人
主权项
地址

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