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发明名称
Pressure control apparatus
摘要
申请公布号
US2008685(A)
申请公布日期
1935.07.23
申请号
US19280267305
申请日期
1928.04.04
申请人
DAWSON CHARLES W
发明人
DAWSON CHARLES W.
分类号
B60S5/04
主分类号
B60S5/04
代理机构
代理人
主权项
地址
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