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.)
Individual
Original Assignee
Individual
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 IndividualfiledCriticalIndividual
Priority to ES99767UpriorityCriticalpatent/ES99767Y/en
Publication of ES99767UpublicationCriticalpatent/ES99767U/en
Application grantedgrantedCritical
Publication of ES99767YpublicationCriticalpatent/ES99767Y/en
A sound toy, essentially characterized by being made in the unión of two symmetrical pieces molded in resistant materials and between which they determine a representation of a bird, inside which is housed a body of sound beeps of continuous emission whose outlet mouth faces with an articulated tongue in tilt with balance by the mass of the lower floor of the figure shown and whose tongue, in its oscillations, determines variations in the tone of the sound emitted at the same time that, by dragging the periodic resistance to the air, move to the external element constituting the said mobile peak. (Machine-translation by Google Translate, not legally binding)
ES99767U1963-05-291963-05-29
Sound toy
ExpiredES99767Y
(en)
The effect of acoustic environment on the burning rate of solid propellants(Effect of acoustic environment on burning rate of solid propellants, producing sustained oscillatory behavior by using specially designed burners)
Effect of acoustic environment on the burning rate of solid propellants(Acoustic environment effect on burning rate of solid propellants, producing sustained oscillatory behavior by using specially designed burners)