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经营范围
发明名称
Valve operating mechanism
摘要
申请公布号
US2053743(A)
申请公布日期
1936.09.08
申请号
US19330679633
申请日期
1933.07.10
申请人
RUSSELL ROBERT C
发明人
RUSSELL ROBERT C.
分类号
F01L1/24;H03J1/04
主分类号
F01L1/24
代理机构
代理人
主权项
地址
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