BE504306A - - Google Patents
Info
- Publication number
- BE504306A BE504306A BE504306DA BE504306A BE 504306 A BE504306 A BE 504306A BE 504306D A BE504306D A BE 504306DA BE 504306 A BE504306 A BE 504306A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
- H04M11/022—Paging systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Control Of Multiple Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH287047T | 1950-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE504306A true BE504306A (fr) |
Family
ID=4485628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE504306D BE504306A (fr) | 1950-06-28 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE504306A (fr) |
| CH (1) | CH287047A (fr) |
-
0
- BE BE504306D patent/BE504306A/xx unknown
-
1950
- 1950-06-28 CH CH287047D patent/CH287047A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH287047A (de) | 1952-11-15 |