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Individual
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Individual
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Priority to ES0050118UpriorityCriticalpatent/ES50118Y/en
Publication of ES50118UpublicationCriticalpatent/ES50118U/en
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Publication of ES50118YpublicationCriticalpatent/ES50118Y/en
A new voice perfected for dolls of the known type of sound box with piston without bellows, with the new feature that in the closed bottom of the cylinder inside which the piston freely slides, there is a one way air inlet valve in such that the air can enter through said valve when the piston moves away from it, and the valve is automatically closed when the piston approaches it. (Machine-translation by Google Translate, not legally binding)
ES0050118U1955-09-211955-09-21
New, perfected voice for dolls
ExpiredES50118Y
(en)