Perfectionnements aux bésicles et analogues,申请号FRD682621-传众专利搜索

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发明名称	Perfectionnements aux bésicles et analogues
摘要
申请公布号	FR682621(A)	申请公布日期	1930.05.30
申请号	FRD682621	申请日期	1929.10.02
申请人	J. & R. FLEMING LIMITED	发明人
分类号	G02C5/22	主分类号	G02C5/22
代理机构		代理人
主权项
地址

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