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经营范围
发明名称
Improvements in and relating to vacuum pumps and fluid compressors
摘要
申请公布号
GB350945(A)
申请公布日期
1931.06.17
申请号
GB19300008557
申请日期
1930.03.17
申请人
LOUIS JEAN LECLAIR;ALOYSIUS GRAHAM BRACKENBURY;THE WESTINGHOUSE BRAKE AND SAXBY SIGNAL COMPANY LIMITED
发明人
分类号
F04B33/00;F04B45/04
主分类号
F04B33/00
代理机构
代理人
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