| 摘要 |
<p>821,839. Resilient upholstery. MEYERHARDT, D. Dec. 21, 1955, No. 3666/55. Class 52(4) A structure for cushions, mattresses &c. made of resilient foam material comprises half-jointed partitions 1 leaving cells 2 closed at both ends by a sheet 3 of like material. In a cylindrical structure, the cells are defined by longitudinal radially extending partitions crossed by ring-like partitions, the cells being closed by inner and outer cylindrical sheets.</p> |
