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发明名称
Timer
摘要
申请公布号
US2153540(A)
申请公布日期
1939.04.11
申请号
US19360116984
申请日期
1936.12.21
申请人
ARMSTRONG LEONARD J
发明人
ARMSTRONG LEONARD J.
分类号
F02P7/063
主分类号
F02P7/063
代理机构
代理人
主权项
地址
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