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发明名称
Improvements in and relating to vacuum supports for pressure releasing devices
摘要
申请公布号
GB774812(A)
申请公布日期
1957.05.15
申请号
GB19540025156
申请日期
1954.08.30
申请人
JOHNSON, MATTHEY & COMPANY LIMITED
发明人
PIRIE JAMES MANSERGH;BROWN JOHN FREDERICK WALTER
分类号
F16K17/16
主分类号
F16K17/16
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代理人
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