Streckenausbau mit Unterzuegen,申请号DE1954SC16551-传众专利搜索

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发明名称	Streckenausbau mit Unterzuegen
摘要
申请公布号	DE1016208(B)	申请公布日期	1957.09.26
申请号	DE1954SC16551	申请日期	1954.10.20
申请人	HERMANN SCHOETTKER	发明人
分类号	E21D11/14;E21D11/34	主分类号	E21D11/14
代理机构		代理人
主权项
地址

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