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Priority to ES0059766UpriorityCriticalpatent/ES59766Y/en
Publication of ES59766UpublicationCriticalpatent/ES59766U/en
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Publication of ES59766YpublicationCriticalpatent/ES59766Y/en
A simplified whistle for bodies of flexible dolls and the like, characterized essentially by being a flexible assembly composed of a circular plate provided with a hole in its plane and a cylinder-conical chamber that forms part of this plane and has a hole similar to the anterior in the area of the vertex of the cone, this chamber constituting the pressure for the purpose of expelling the air with great speed to the outside. (Machine-translation by Google Translate, not legally binding)
ES0059766U1957-04-301957-04-30
Simplified whistle for flexible doll bodies and the like
ExpiredES59766Y
(en)