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Individual
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Individual
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Priority to ES403925ApriorityCriticalpatent/ES403925A2/en
Publication of ES403925A2publicationCriticalpatent/ES403925A2/en
Improvements introduced in the object of the main patent no., 345,723, by: perfeccionesamientos en extensible antennas, characterized in that inside the nut of retaining the extensible elements is housed a metal cap provided with several longitudinal grooves that allow to expand the opening of the upper part, in order to create, once housed in the nut, a central throttle that effectively presses on the last enveloping tube of the extensible elements, both in the folded and extended position, allowing its sliding; the lower end of the pressing sleeve comprises a flange or flange acting as a stop and limiting stop of its housing against the lower edge of the nut. (Machine-translation by Google Translate, not legally binding)
ES403925A1972-06-161972-06-16Improvements in extensible antennas. (Machine-translation by Google Translate, not legally binding)
ExpiredES403925A2
(en)