Procédé de fabrication de poutres pour plafonds préfabriqués,申请号FRD923856-传众专利搜索

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发明名称	Procédé de fabrication de poutres pour plafonds préfabriqués
摘要
申请公布号	FR923856(A)	申请公布日期	1947.07.21
申请号	FRD923856	申请日期	1946.03.15
申请人		发明人	LEONARDI UMBERTO
分类号	B28B7/00;E04B5/06	主分类号	B28B7/00
代理机构		代理人
主权项
地址

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