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发明名称
Telephone advertising method and apparatus
摘要
申请公布号
US1958896(A)
申请公布日期
1934.05.15
申请号
US19320602134
申请日期
1932.03.31
申请人
LAWRENCE LESAVOY ISADORE;KOENIGSBERG SANFORD Z
发明人
LESAVOY ISADORE LAWRENCE;KOENIGSBERG SANFORD Z.
分类号
H04M1/65
主分类号
H04M1/65
代理机构
代理人
主权项
地址
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