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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch SA
Original Assignee
Fabrica Espanola de Magnetos SA FEMSA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fabrica Espanola de Magnetos SA FEMSAfiledCriticalFabrica Espanola de Magnetos SA FEMSA
Priority to ES0252189ApriorityCriticalpatent/ES252189A1/es
Publication of ES252189A1publicationCriticalpatent/ES252189A1/es
General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction
(AREA)
Abstract
Avisador electroacústico, particularmente para autovehículos, constituido esencialmente por una membrana sometida períodicamente a vibraciones, y un disco vibrante unido centralmente a ella, caracterizado por el hecho de que dicho disco (6) lleva unos surcos practicados sobre la cara opuesta a aquella que está enfrente de la membrana (5).
ES0252189A1959-09-031959-09-03Avisador electroacustico, particularmente para autovehiculos
ExpiredES252189A1
(es)