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发明名称
Push button device
摘要
申请公布号
US2320628(A)
申请公布日期
1943.06.01
申请号
US19400334673
申请日期
1940.05.11
申请人
WERNER MAHNKEN
发明人
MAHNKEN WERNER
分类号
H03J5/14
主分类号
H03J5/14
代理机构
代理人
主权项
地址
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