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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ALMOGUERA FRONTERA ADRIAN DE
Original Assignee
ALMOGUERA FRONTERA ADRIAN DE
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Filing date
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Application filed by ALMOGUERA FRONTERA ADRIAN DEfiledCriticalALMOGUERA FRONTERA ADRIAN DE
Priority to ES232780ApriorityCriticalpatent/ES232780A1/es
Publication of ES232780A1publicationCriticalpatent/ES232780A1/es
Improvements in or relating to circuit. arrangements for telephone installations inwhich switching selectors are arranged tobe set by means of marking devices