ES94627A1 -
Electric switch device for electric luminous letter announcements, which is operated by means of the keyboard of a typewriter.
- Google Patents
Electric switch device for electric luminous letter announcements, which is operated by means of the keyboard of a typewriter.
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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Lautner Max
Original Assignee
Lautner Max
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Publication date
Application filed by Lautner MaxfiledCriticalLautner Max
Priority to ES94627ApriorityCriticalpatent/ES94627A1/en
Publication of ES94627A1publicationCriticalpatent/ES94627A1/en
ES94627A1925-07-271925-07-27
Electric switch device for electric luminous letter announcements, which is operated by means of the keyboard of a typewriter.
ExpiredES94627A1
(en)
An essentially electrical device that, without any energy expenditure or movement when it does not act, allows to translate ordinary typographical characters to be letters or numbers or punctuation marks, the electric currents emitted according to the code.