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发明名称
INRICHTING VOOR HET AFWERKEN VAN EEN WINPUT.
摘要
申请公布号
NL7705235(A)
申请公布日期
1977.09.30
申请号
NL19770005235
申请日期
1977.05.11
申请人
SOLIS MYRON ZANDMER TE BANFF, CANADA.
发明人
分类号
E21B33/14;E21B43/11;(IPC1-7):E21B43/11
主分类号
E21B33/14
代理机构
代理人
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地址
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