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发明名称
Fishing tool
摘要
申请公布号
US1816991(A)
申请公布日期
1931.08.04
申请号
US19270229991
申请日期
1927.10.31
申请人
FRANK I. KAUFFMAN
发明人
AMBURGH CHARLES L. VAN;RUSSELL JAMES R.
分类号
E21B27/00;E21B31/08
主分类号
E21B27/00
代理机构
代理人
主权项
地址
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