Escalier pliant en plusieurs éléments,申请号FRD990534-传众专利搜索

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发明名称	Escalier pliant en plusieurs éléments
摘要
申请公布号	FR990534(A)	申请公布日期	1951.09.24
申请号	FRD990534	申请日期	1949.07.12
申请人		发明人	STELBERG
分类号	E04F11/06	主分类号	E04F11/06
代理机构		代理人
主权项
地址

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