Dispositif de variation instantanée de la course d'une bielle,申请号FRD926977-传众专利搜索

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发明名称	Dispositif de variation instantanée de la course d'une bielle
摘要
申请公布号	FR926977(A)	申请公布日期	1947.10.16
申请号	FRD926977	申请日期	1946.05.16
申请人		发明人	DRU EMILE-ALFRED
分类号	B21J7/20;B21J13/00	主分类号	B21J7/20
代理机构		代理人
主权项
地址

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