Perfectionnements aux appareils de dragage et d'excavation,申请号FRD726852-传众专利搜索

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发明名称	Perfectionnements aux appareils de dragage et d'excavation
摘要
申请公布号	FR726852(A)	申请公布日期	1932.06.04
申请号	FRD726852	申请日期	1931.01.26
申请人	CLAUDE BONNET ET FILS	发明人
分类号	E02F7/02	主分类号	E02F7/02
代理机构		代理人
主权项
地址

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