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发明名称
Dial illuminating means for telephones
摘要
申请公布号
US2464595(A)
申请公布日期
1949.03.15
申请号
US19470764782
申请日期
1947.07.30
申请人
MASABNY ANTHONY N
发明人
MASABNY ANTHONY N.
分类号
H04M1/22
主分类号
H04M1/22
代理机构
代理人
主权项
地址
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