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发明名称
Improvements in and relating to vacuum pumps
摘要
申请公布号
GB389087(A)
申请公布日期
1933.03.07
申请号
GB19310025085
申请日期
1931.09.07
申请人
THE BRITISH THOMSON-HOUSTON COMPANY, LIMITED;FRANK PERCY WHITAKER
发明人
分类号
F04C27/02
主分类号
F04C27/02
代理机构
代理人
主权项
地址
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