Fermeture de trémie par trappe, applicable notamment aux trémies de matériel roulant,申请号FRD917714-传众专利搜索

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发明名称	Fermeture de trémie par trappe, applicable notamment aux trémies de matériel roulant
摘要
申请公布号	FR917714(A)	申请公布日期	1947.01.20
申请号	FRD917714	申请日期	1945.07.24
申请人	COMPAGNIE FRANCAISE DE MATERIEL DE CHEMINS DE FER	发明人
分类号	B61D7/20	主分类号	B61D7/20
代理机构		代理人
主权项
地址

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