Invention Grant
- Patent Title: Alarm signaling system
- Patent Title (中): 报警信号系统
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Application No.: US18463250Application Date: 1950-09-13
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Publication No.: US2583088APublication Date: 1952-01-22
- Inventor: CLUTTS CHARLES E , PULLIS GEORGE A , SCHENCK ALFRED K , WEBER LAURENCE A
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US18463250 1950-09-13
- Main IPC: G08B25/01
- IPC: G08B25/01
Public/Granted literature
- US20240235428A9 VIBRATION DEVICE, VIBRATION UNIT, AND VIBRATION APPARATUS Public/Granted day:2024-07-11
Information query
