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发明名称
Valve operating mechanism
摘要
申请公布号
US2717759(A)
申请公布日期
1955.09.13
申请号
US19520310976
申请日期
1952.09.23
申请人
KOPPERS COMPANY, INC.
发明人
SCHOFIELD WILFRED C.;WHITCOMB ARTHUR J.
分类号
F16K31/05
主分类号
F16K31/05
代理机构
代理人
主权项
地址
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