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发明名称
Universal connection for all metal rotary hose for oil wells
摘要
申请公布号
US1885886(A)
申请公布日期
1932.11.01
申请号
US19290406580
申请日期
1929.11.12
申请人
BANKS CHARLES G
发明人
BANKS CHARLES G.
分类号
F16L27/08
主分类号
F16L27/08
代理机构
代理人
主权项
地址
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