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发明名称
Electric air valve
摘要
申请公布号
US2288912(A)
申请公布日期
1942.07.07
申请号
US19400362151
申请日期
1940.10.21
申请人
MEARS WILLIAM J C
发明人
MEARS WILLIAM J. C.
分类号
B60T15/02;F16K31/06
主分类号
B60T15/02
代理机构
代理人
主权项
地址
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