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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0048800UpriorityCriticalpatent/ES48800Y/en
Publication of ES48800UpublicationCriticalpatent/ES48800U/en
Application grantedgrantedCritical
Publication of ES48800YpublicationCriticalpatent/ES48800Y/en
A watch crown, hermetic, characterized by being formed by a hollow cap with a central shank, internally threaded to link with the machinery tree, the cap slides on a tube welded to the watch case, which it goes through to give step to the threaded shaft, this section of tube having a smaller diameter. Between the tube, the cap and the central appendix of the same, there is an annular space occupied by a plastic gasket, unalterable to fats and anchored to the support tube of the crown, by a flange of its inner edge. (Machine-translation by Google Translate, not legally binding)
Procedure and apparatus for the formation of a necklace in a tube of elastic and deformable material (Machine-translation by Google Translate, not legally binding)