| 发明名称 |
Line tester for coin-operated telephones |
| 摘要 |
A line tester unit for coin-operated telephones that permits the interface between the coin-operated telephones and the telephone network to be efficiently verified at most access points throughout the telephone network.
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| 申请公布号 |
US5960060(A) |
申请公布日期 |
1999.09.28 |
| 申请号 |
US19970914378 |
申请日期 |
1997.08.19 |
| 申请人 |
J. V. TECHNOLOGIES, INC. |
发明人 |
KAIBEL, GARY W. |
| 分类号 |
H04M1/24;H04M3/24;(IPC1-7):H04M1/24;H04M17/00 |
主分类号 |
H04M1/24 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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