,申请号NL19650000191-传众专利搜索

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发明名称
摘要
申请公布号	NL6500191(A)	申请公布日期	1965.07.12
申请号	NL19650000191	申请日期	1965.01.08
申请人		发明人
分类号	E21C37/12;F42B3/00;F42B3/02	主分类号	E21C37/12
代理机构		代理人
主权项
地址

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