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发明名称
Combination door track and reversing switch
摘要
申请公布号
US1792420(A)
申请公布日期
1931.02.10
申请号
US19290380563
申请日期
1929.07.24
申请人
NATIONAL PNEUMATIC COMPANY
发明人
FORMAN PARIS RALPH
分类号
H01H3/16
主分类号
H01H3/16
代理机构
代理人
主权项
地址
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