Tranchée-abri pouvant servir d'égout,申请号FRD850644-传众专利搜索

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发明名称	Tranchée-abri pouvant servir d'égout
摘要
申请公布号	FR850644(A)	申请公布日期	1939.12.21
申请号	FRD850644	申请日期	1939.02.21
申请人		发明人	RIFFAULT ROBERT
分类号	E04H9/12	主分类号	E04H9/12
代理机构		代理人
主权项
地址

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