Invention Grant
- Patent Title: Relay control circuit
- Patent Title (中): 继电器控制电路
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Application No.: US14876061Application Date: 1961-10-30
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Publication No.: US3150238APublication Date: 1964-09-22
- Inventor: CARTER HERMAN T
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US14876061 1961-10-30
- Main IPC: H04M9/00
- IPC: H04M9/00
Public/Granted literature
- US20160100239A1 SYSTEM FOR REPRODUCING SOUND Public/Granted day:2016-04-07
Information query
