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发明名称
Magnetic switch hook
摘要
申请公布号
US2322851(A)
申请公布日期
1943.06.29
申请号
US19410375717
申请日期
1941.01.24
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
KALB ROBERT M.
分类号
H01H36/00;H04M1/02;H04M1/10
主分类号
H01H36/00
代理机构
代理人
主权项
地址
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