Invention Grant
- Patent Title: Control circuit for telephone line concentrator
- Patent Title (中): 电话线集中器控制电路
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Application No.: US15927561Application Date: 1961-12-14
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Publication No.: US3140355APublication Date: 1964-07-07
- Inventor: ALEXANDER FEINER , LOWRY TERRELL N
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US15927561 1961-12-14
- Main IPC: H04Q3/58
- IPC: H04Q3/58
Public/Granted literature
- US10346659B1 System for reading tags Public/Granted day:2019-07-09
Information query
