Ramp,申请号US19300454360-传众专利搜索

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发明名称	Ramp
摘要
申请公布号	US1853266(A)	申请公布日期	1932.04.12
申请号	US19300454360	申请日期	1930.05.21
申请人	HERMANN FOUGNER	发明人	FOUGNER HERMANN
分类号	E04H6/10	主分类号	E04H6/10
代理机构		代理人
主权项
地址

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