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经营范围
发明名称
VACUUM CONTROL
摘要
申请公布号
US3489390(A)
申请公布日期
1970.01.13
申请号
USD3489390
申请日期
1967.02.06
申请人
LEWIS D. CADOGAN
发明人
LEWIS D. CADOGAN
分类号
F15B11/06;F16K31/62;(IPC1-7):F16K31/00;F16K31/44
主分类号
F15B11/06
代理机构
代理人
主权项
地址
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