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Priority to ES0007549UpriorityCriticalpatent/ES7549Y/en
Publication of ES7549UpublicationCriticalpatent/ES7549U/en
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Publication of ES7549YpublicationCriticalpatent/ES7549Y/en
System of construction of a backrest and seat usable in the manufacture of chairs, hammocks, sofas, benches and similar, characterized because on two braces of canvas or other suitable material such as leather or steel there is a mobile trellis consisting of bars or wooden beams or metallic material with or without springs that are fixed solidly to the frame of the seat in which it is to be used, combining the advantages of elasticity, easy cleaning or reduced cost. (Machine-translation by Google Translate, not legally binding)
ES0007549U1942-06-171942-06-17
A new seating system for hammocks, chairs and armchairs
ExpiredES7549Y
(en)