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Individual
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Individual
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Application filed by IndividualfiledCriticalIndividual
Priority to ES0070915UpriorityCriticalpatent/ES70915Y/en
Publication of ES70915UpublicationCriticalpatent/ES70915U/en
Application grantedgrantedCritical
Publication of ES70915YpublicationCriticalpatent/ES70915Y/en
"WASHER PERFECTED FOR SCREWS", more special application to the spark plugs of the motors of exploitation, which is characterized by providing each washer of the usual type with an angular projection that starting from the internal circumference of the circular crown that constitutes the washer and with its same thickness, it decreases until it can be inserted between the threads of the thread, reaching the necessary length for this purpose, so that it can only be introduced or removed by turning in the manner of an ordinary nut, so that may be detached fortuitously. (Machine-translation by Google Translate, not legally binding)
ES0070915U1959-01-131959-01-13
Enhanced Washer for Hardware
ExpiredES70915Y
(en)