Pulsating pneumatic body supporting device and pneumatic valve therefor

作者: Gal Andrew

DOI:

关键词: Materials sciencePneumatic valveMechanical engineering

摘要:

参考文章(7)
Julian D Hart, Variable-pressure bed or mattress ,(1926)
Donald V Summerville, Massaging apparatus or the like ,(1945)
Donald V Summerville, Body support device ,(1951)
Nina K Morrison, Floating contour cushion ,(1956)