NL156258B - COMMUNICATION SYSTEM. - Google Patents
COMMUNICATION SYSTEM.Info
- Publication number
- NL156258B NL156258B NL7208329A NL7208329A NL156258B NL 156258 B NL156258 B NL 156258B NL 7208329 A NL7208329 A NL 7208329A NL 7208329 A NL7208329 A NL 7208329A NL 156258 B NL156258 B NL 156258B
- Authority
- NL
- Netherlands
- Prior art keywords
- communication system
- communication
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
- G08B26/007—Wireless interrogation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7208329A NL156258B (en) | 1972-06-19 | 1972-06-19 | COMMUNICATION SYSTEM. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7208329A NL156258B (en) | 1972-06-19 | 1972-06-19 | COMMUNICATION SYSTEM. |
Publications (2)
Publication Number | Publication Date |
---|---|
NL7208329A NL7208329A (en) | 1973-12-21 |
NL156258B true NL156258B (en) | 1978-03-15 |
Family
ID=19816303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7208329A NL156258B (en) | 1972-06-19 | 1972-06-19 | COMMUNICATION SYSTEM. |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL156258B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2386875A1 (en) * | 1977-04-04 | 1978-11-03 | Baillaud Pierre | Automatic monitoring system for old or infirm persons - has central transceiver to monitor signals from transceivers carried by individuals who require supervision |
-
1972
- 1972-06-19 NL NL7208329A patent/NL156258B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
NL7208329A (en) | 1973-12-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TNT | Modifications of names of proprietors of patents or applicants of examined patent applications |
Owner name: ERICSSON PAGING SYSTEMS B.V. |
|
TNT | Modifications of names of proprietors of patents or applicants of examined patent applications |
Owner name: ERICSSON RADIO SYSTEMS B.V. |
|
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: NIRA N V |
|
V4 | Lapsed because of reaching the maxim lifetime of a patent |