ES79484A1 - Perfeccionamientos en aparatos de llamada o avisadores que funcionan por medio de señales transmitidas por telegrafía inalámbrica.
- Google Patents
Perfeccionamientos en aparatos de llamada o avisadores que funcionan por medio de señales transmitidas por telegrafía inalámbrica.
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
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 Marconis Wireless Telegraph Co LtdfiledCriticalMarconis Wireless Telegraph Co Ltd
Priority to ES79484ApriorityCriticalpatent/ES79484A1/es
Publication of ES79484A1publicationCriticalpatent/ES79484A1/es
ES79484A1921-09-221921-09-22Perfeccionamientos en aparatos de llamada o avisadores que funcionan por medio de señales transmitidas por telegrafía inalámbrica.
ExpiredES79484A1
(es)