ES234809A3 - Improvements in the apparatus for intercommunication to viva voz (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements in the apparatus for intercommunication to viva voz (Machine-translation by Google Translate, not legally binding)
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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ducati Elettrotecnica SpA
Original Assignee
Ducati Elettrotecnica SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ducati Elettrotecnica SpAfiledCriticalDucati Elettrotecnica SpA
Priority to ES0234809ApriorityCriticalpatent/ES234809A3/en
Publication of ES234809A3publicationCriticalpatent/ES234809A3/en
Interconnected Communication Systems, Intercoms, And Interphones
(AREA)
Abstract
Improvement in the devices for intercommunication to voice, characterized by the fact that two main positions one can be called by one or more derivatives, said main intercommunicating between them and both can call any derivative. (Machine-translation by Google Translate, not legally binding)
ES0234809A1957-04-111957-04-11Improvements in the apparatus for intercommunication to viva voz (Machine-translation by Google Translate, not legally binding)
ExpiredES234809A3
(en)
Improvements in the manufacture of sliding curtains of articulated sheets, especially for furniture. (Machine-translation by Google Translate, not legally binding)