ES441188A1 - Electronic intercom by waves. (Machine-translation by Google Translate, not legally binding) - Google Patents
Electronic intercom by waves. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES441188A1 ES441188A1 ES441188A ES441188A ES441188A1 ES 441188 A1 ES441188 A1 ES 441188A1 ES 441188 A ES441188 A ES 441188A ES 441188 A ES441188 A ES 441188A ES 441188 A1 ES441188 A1 ES 441188A1
- Authority
- ES
- Spain
- Prior art keywords
- waves
- translation
- machine
- self
- legally binding
- 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.)
- Expired
Links
Landscapes
- Transceivers (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Abstract
Electronic intercom by waves, essentially characterized by the fact of comprising a filter selector of waves that is put into service by a call oscillator and being pressed one of the buttons of which it consists, exciting a relay provided with self-feeding means, maintaining this self-powered mode meanwhile the intercommunication between two devices persists, carrying an on-line pushbutton to speak in the closed position and listening in the open position, as well as a switch instead of the pushbutton, to act with a dictaphone, having an additional pushbutton, so that to end the communication and to leave the intercom out of service, the circuit is interrupted and the self-powered relay is disconnected. (Machine-translation by Google Translate, not legally binding)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES441188A ES441188A1 (en) | 1975-09-23 | 1975-09-23 | Electronic intercom by waves. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES441188A ES441188A1 (en) | 1975-09-23 | 1975-09-23 | Electronic intercom by waves. (Machine-translation by Google Translate, not legally binding) |
Publications (1)
Publication Number | Publication Date |
---|---|
ES441188A1 true ES441188A1 (en) | 1977-04-01 |
Family
ID=8470028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES441188A Expired ES441188A1 (en) | 1975-09-23 | 1975-09-23 | Electronic intercom by waves. (Machine-translation by Google Translate, not legally binding) |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES441188A1 (en) |
-
1975
- 1975-09-23 ES ES441188A patent/ES441188A1/en not_active Expired
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