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发明名称
Time controlled mechanism for valves or the like
摘要
申请公布号
US2028933(A)
申请公布日期
1936.01.28
申请号
US19320604555
申请日期
1932.04.11
申请人
JOHNSON ROY W
发明人
JOHNSON ROY W.
分类号
F16K31/48
主分类号
F16K31/48
代理机构
代理人
主权项
地址
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