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发明名称
Automatic pressure regulating device
摘要
申请公布号
US1897898(A)
申请公布日期
1933.02.14
申请号
US19310517064
申请日期
1931.02.19
申请人
PAUL VIET
发明人
GERARD LEON
分类号
B60C23/00
主分类号
B60C23/00
代理机构
代理人
主权项
地址
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