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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES1974201925UpriorityCriticalpatent/ES201925Y/en
Publication of ES201925UpublicationCriticalpatent/ES201925U/en
Application grantedgrantedCritical
Publication of ES201925YpublicationCriticalpatent/ES201925Y/en
Contact perfected for keyboard essentially characterized in that the stem of the key has at its lower end a hollow cylindrical dilation in the center of which has a concentric neck between which and the internal walls are fitted and compressed a tubular cylindrical piece of soft structure, high flexibility, but electrically conductive, which has a truncated conical membrane at the center and towards the bottom by a projection that extends beyond the plane of the mouth of the tubular piece, the projection of which forms a flat, preferably circular surface intended to establish a contact, soft and delayed interruption with space saving. (Machine-translation by Google Translate, not legally binding)
ES1974201925U1974-04-021974-04-02
PERFECTED CONTACT FOR KEYBOARDS.
ExpiredES201925Y
(en)
Improvements introduced in the manufacture of glass containers, especially for discharge pipes (Machine-translation by Google Translate, not legally binding)