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发明名称
Valve mechanism
摘要
申请公布号
US1781011(A)
申请公布日期
1930.11.11
申请号
US19290355571
申请日期
1929.04.16
申请人
DARDELET THREADLOCK CORPORATION
发明人
HOKE WILLIAM E.
分类号
F01L1/22
主分类号
F01L1/22
代理机构
代理人
主权项
地址
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