发明授权
US3556586A Multipurpose furniture 失效
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Multipurpose furniture
摘要:
AN ARTICLE OF FURNITURE, ESPECIALLY CHILD''S FURNITURE, FORMED AS A MONOLITHIC HOLLOW WALLED MOLDING OF RIGID PLASTIC MATERIAL OPERATIONALLY USABLE AS AN UPRIGHT CHAIR, A ROCKING CHAIR, A DESK AND A TABLE ACCORDING TO SELECTIVE POSITIONING OF THE ARTICLE.
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