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发明名称
Operating valve for vacuum systems for controlling marine clutches
摘要
申请公布号
US2206771(A)
申请公布日期
1940.07.02
申请号
US19390306015
申请日期
1939.11.24
申请人
DUGAS JR JOSEPH J
发明人
JR. JOSEPH J. DUGAS,
分类号
F16D48/02
主分类号
F16D48/02
代理机构
代理人
主权项
地址
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