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发明名称
Valve actuator
摘要
申请公布号
US2151074(A)
申请公布日期
1939.03.21
申请号
US19370138337
申请日期
1937.04.22
申请人
BEREGH THEODORE J
发明人
BEREGH THEODORE J.
分类号
B41F23/06
主分类号
B41F23/06
代理机构
代理人
主权项
地址
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