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发明名称
Telephone pay station
摘要
申请公布号
US2977419(A)
申请公布日期
1961.03.28
申请号
US19560630341
申请日期
1956.12.24
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
JR. WALTER D. GOODALE,;PFERD WILLIAM
分类号
H04M17/02
主分类号
H04M17/02
代理机构
代理人
主权项
地址
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