BE694798A - - Google Patents
Info
- Publication number
- BE694798A BE694798A BE694798DA BE694798A BE 694798 A BE694798 A BE 694798A BE 694798D A BE694798D A BE 694798DA BE 694798 A BE694798 A BE 694798A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems, e.g. audible personal calling systems
- G08B3/10—Audible signalling systems, e.g. audible personal calling systems using electric transmission; using electromagnetic transmission
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Amplifiers (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53088366A | 1966-03-01 | 1966-03-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE694798A true BE694798A (en:Method) | 1967-08-28 |
Family
ID=24115370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE694798D BE694798A (en:Method) | 1966-03-01 | 1967-02-28 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE694798A (en:Method) |
| CH (1) | CH459009A (en:Method) |
| DE (1) | DE1288960C2 (en:Method) |
| FR (1) | FR1512884A (en:Method) |
| GB (1) | GB1172585A (en:Method) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE537420C (de) * | 1930-02-07 | 1931-11-02 | Wilhelm Dietsche | Vorrichtung zur Signalgebung an Fahrzeugen |
| DE669797C (de) * | 1934-03-10 | 1939-01-04 | Atlas Werke Ag | Luftschallsender mit regelbaren, resonanzfaehigen Gebilden |
| DE1014888B (de) * | 1956-06-30 | 1957-08-29 | Funke Huster Elektrizitaets | Signalgeraet fuer den Bergbau |
-
1967
- 1967-02-27 DE DE1967G0049417 patent/DE1288960C2/de not_active Expired
- 1967-02-27 GB GB916667A patent/GB1172585A/en not_active Expired
- 1967-02-28 BE BE694798D patent/BE694798A/xx unknown
- 1967-03-01 CH CH302667A patent/CH459009A/de unknown
- 1967-03-01 FR FR96972A patent/FR1512884A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1172585A (en) | 1969-12-03 |
| DE1288960C2 (de) | 1973-05-17 |
| DE1288960B (de) | 1969-02-06 |
| FR1512884A (fr) | 1968-02-09 |
| CH459009A (de) | 1968-06-30 |