,申请号NL19690007545-传众专利搜索

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发明名称
摘要
申请公布号	NL6907545(A)	申请公布日期	1969.11.18
申请号	NL19690007545	申请日期	1969.05.16
申请人		发明人
分类号	E04H7/20;G21C13/093;(IPC1-7):G21C13/00	主分类号	E04H7/20
代理机构		代理人
主权项
地址

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