JPS5351908A - Caller identification system for party line telephone - Google Patents
Caller identification system for party line telephoneInfo
- Publication number
- JPS5351908A JPS5351908A JP12606676A JP12606676A JPS5351908A JP S5351908 A JPS5351908 A JP S5351908A JP 12606676 A JP12606676 A JP 12606676A JP 12606676 A JP12606676 A JP 12606676A JP S5351908 A JPS5351908 A JP S5351908A
- Authority
- JP
- Japan
- Prior art keywords
- identification system
- caller identification
- line telephone
- party line
- party
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Devices For Supply Of Signal Current (AREA)
Abstract
PURPOSE: To enable the identification of call by two common seven subscribers, by inverting the polarity of the station power supply.
COPYRIGHT: (C)1978,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12606676A JPS5351908A (en) | 1976-10-22 | 1976-10-22 | Caller identification system for party line telephone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12606676A JPS5351908A (en) | 1976-10-22 | 1976-10-22 | Caller identification system for party line telephone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5351908A true JPS5351908A (en) | 1978-05-11 |
Family
ID=14925769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12606676A Pending JPS5351908A (en) | 1976-10-22 | 1976-10-22 | Caller identification system for party line telephone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5351908A (en) |
-
1976
- 1976-10-22 JP JP12606676A patent/JPS5351908A/en active Pending
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