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发明名称
Selective hydraulic control structure
摘要
申请公布号
US2449269(A)
申请公布日期
1948.09.14
申请号
US19450610116
申请日期
1945.08.10
申请人
LA PLANT-CHOATE MANUFACTURING CO., INC.
发明人
AUSTIN ELLSWORTH W.
分类号
E02F3/64;F15B11/20
主分类号
E02F3/64
代理机构
代理人
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地址
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