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发明名称
Backplate for telephone sets
摘要
申请公布号
US2033773(A)
申请公布日期
1936.03.10
申请号
US19330682777
申请日期
1933.07.29
申请人
THE GRAY TELEPHONE PAY STATION COMPANY
发明人
LONG GEORGE A.
分类号
H04M1/02
主分类号
H04M1/02
代理机构
代理人
主权项
地址
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