| 摘要 |
692,539. Spring upholstery. NACHMAN CORPORATION. Jan. 2, 1952, No. 144/52. Class 52(iv) A flat strip metal frame 6 is mounted on an assembly of pocketed springs overlying the common tangent of the springs two adjacent rows and is secured by clips 4. The spring casings may comprise pockets 1 spaced by webs 2 to obtain a close assembly, boxing strips 5 with surface webs encasing the marginal springs. A peripheral frame may also be provided and an inner grid of flat strips may be mounted over the centrally disposed springs. |
