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发明名称
Hydraulic system
摘要
申请公布号
US2515531(A)
申请公布日期
1950.07.18
申请号
US19470721353
申请日期
1947.01.10
申请人
BARNES DRILL CO.
发明人
SEBORG EARNEST Y.
分类号
B23B47/22;B24B33/02
主分类号
B23B47/22
代理机构
代理人
主权项
地址
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