ES41676A1 - Mejoras en aparatos telefónicos y cuadros para comunicaciones telefónicas y en la manera de suministrar corriente eléctrica a los mismos.
- Google Patents
Mejoras en aparatos telefónicos y cuadros para comunicaciones telefónicas y en la manera de suministrar corriente eléctrica a los mismos.
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.)
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Alfred Graham & Co
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Alfred Graham & Co
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Publication date
Application filed by Alfred Graham & CofiledCriticalAlfred Graham & Co
Priority to ES41676ApriorityCriticalpatent/ES41676A1/es
Publication of ES41676A1publicationCriticalpatent/ES41676A1/es
ES41676A1907-09-271907-09-27Mejoras en aparatos telefónicos y cuadros para comunicaciones telefónicas y en la manera de suministrar corriente eléctrica a los mismos.
ExpiredES41676A1
(es)