CH514898A - Signalgenerator zur Erzeugung von zwei aufeinanderfolgenden unterschiedlichen akustischen Signalen - Google Patents
Signalgenerator zur Erzeugung von zwei aufeinanderfolgenden unterschiedlichen akustischen SignalenInfo
- Publication number
- CH514898A CH514898A CH1762870A CH1762870A CH514898A CH 514898 A CH514898 A CH 514898A CH 1762870 A CH1762870 A CH 1762870A CH 1762870 A CH1762870 A CH 1762870A CH 514898 A CH514898 A CH 514898A
- Authority
- CH
- Switzerland
- Prior art keywords
- generating
- signal generator
- acoustic signals
- different acoustic
- successive different
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C21/00—Producing acoustic time signals by electrical means
- G04C21/16—Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
- G04C21/36—Signal repeating devices
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Electromechanical Clocks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP45049514A JPS5032038B1 (de) | 1970-06-10 | 1970-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH514898A true CH514898A (de) | 1971-10-31 |
Family
ID=12833227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1762870A CH514898A (de) | 1970-06-10 | 1970-11-26 | Signalgenerator zur Erzeugung von zwei aufeinanderfolgenden unterschiedlichen akustischen Signalen |
Country Status (5)
Country | Link |
---|---|
US (1) | US3697982A (de) |
JP (1) | JPS5032038B1 (de) |
CH (1) | CH514898A (de) |
DE (1) | DE2038111B2 (de) |
FR (1) | FR2061164A5 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3875559A (en) * | 1971-10-18 | 1975-04-01 | Rexroth & Szekkessy | Circuit system for brake lights |
GB1412457A (en) * | 1971-12-27 | 1975-11-05 | Sumitomo Electric Industries | Sound generator comprising a piezoelectric acoustic device |
US3763326A (en) * | 1972-05-22 | 1973-10-02 | Bell Canada Northern Electric | Telephone audio signalling arrangement |
US3906479A (en) * | 1974-03-15 | 1975-09-16 | E Systems Inc | Time interval computer |
US4234876A (en) * | 1976-10-19 | 1980-11-18 | Riken-Denshi Kogyo Kabushiki Kaisha | Omnidirectional move-stop sensor |
US4659042A (en) * | 1984-06-19 | 1987-04-21 | Friddle Ii William B | Canopy locator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3284796A (en) * | 1961-10-30 | 1966-11-08 | Vincent S Borsattino | Sound producer |
US3504364A (en) * | 1966-11-07 | 1970-03-31 | William E Abel | Electronic siren |
-
1970
- 1970-06-10 JP JP45049514A patent/JPS5032038B1/ja active Pending
- 1970-07-31 DE DE19702038111 patent/DE2038111B2/de not_active Withdrawn
- 1970-09-09 FR FR7032726A patent/FR2061164A5/fr not_active Expired
- 1970-11-26 CH CH1762870A patent/CH514898A/de not_active IP Right Cessation
- 1970-12-03 US US94825A patent/US3697982A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS5032038B1 (de) | 1975-10-16 |
FR2061164A5 (de) | 1971-06-18 |
DE2038111B2 (de) | 1972-05-04 |
US3697982A (en) | 1972-10-10 |
DE2038111A1 (de) | 1971-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |