Invention Grant
US2596989A Automatic electronic switching by time delay signal for telephone systems
失效
通过电话系统的延时信号进行自动电子切换
- Patent Title: Automatic electronic switching by time delay signal for telephone systems
- Patent Title (中): 通过电话系统的延时信号进行自动电子切换
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Application No.: US16252050Application Date: 1950-05-17
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Publication No.: US2596989APublication Date: 1952-05-20
- Inventor: DELORAINE EDMOND M , ADAMS PAUL R
- Applicant: STANDARD TELEPHONES CABLES LTD
- Assignee: Honda Motor Co Ltd
- Current Assignee: Honda Motor Co Ltd
- Priority: US16252050 1950-05-17; US275986X 1945-11-17
- Main IPC: H04Q3/52
- IPC: H04Q3/52 ; H04Q11/04
Public/Granted literature
- US10585785B2 Preservation of modifications after overlay removal from a container Public/Granted day:2020-03-10
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