,申请号BED690288-传众专利搜索

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发明名称
摘要
申请公布号	BE690288(A)	申请公布日期	1967.05.02
申请号	BED690288	申请日期	1966.11.28
申请人		发明人
分类号	C04B30/02;C04B35/80;F16J15/22;F16L59/04	主分类号	C04B30/02
代理机构		代理人
主权项
地址

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