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发明名称
Pneumatic valve control volume booster system
摘要
申请公布号
US2638875(A)
申请公布日期
1953.05.19
申请号
US19520271268
申请日期
1952.02.12
申请人
FOXBORO COMPANY
发明人
BOWDITCH HOEL L.;CATHERON ALLAN R.
分类号
主分类号
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