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.)
CAUCHO LOPEZ GABRIEL
Original Assignee
CAUCHO LOPEZ GABRIEL
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 CAUCHO LOPEZ GABRIELfiledCriticalCAUCHO LOPEZ GABRIEL
Priority to ES0036150UpriorityCriticalpatent/ES36150U/en
Publication of ES36150UpublicationCriticalpatent/ES36150U/en
Improved electric warning device, characterized in that it is composed of a body or box of any suitable material, and conveniently, preferably of circular section, one of whose bases is open on all its surface, and bordered by a projection or wing, in the which perforations have been made for fitting and coupling a piece that closes the assembly, this second piece having openings to let out the sound produced by the vibration of a diaphragm or membrane coupled between both pieces, bringing the closing one a cap spherical adjusted in its center, which acts as a sound diffuser. (Machine-translation by Google Translate, not legally binding)
ES0036150U1953-05-081953-05-08Improved electrical warning (Machine-translation by Google Translate, not legally binding)
PendingES36150U
(en)
Apparatus for the fonation without vocal strings, especially suitable for laringectomatized (Machine-translation by Google Translate, not legally binding)