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Priority to ES1966126199UpriorityCriticalpatent/ES126199Y/en
Publication of ES126199UpublicationCriticalpatent/ES126199U/en
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Publication of ES126199YpublicationCriticalpatent/ES126199Y/en
Hammer whistle hammer consisting of two symmetrical parts joined together by their edges with the interposition of a handle or long handle in the shape of astil characterized in that said two parts joined have the shape of the head of a hollow hammer closed at one end open on the other and with a second opening in a middle area of its body close to the first to constitute the whistle itself and a closed internal cavity that results in a soundboard for the sound produced joined with the open end through of a channel or conduit. (Machine-translation by Google Translate, not legally binding)