| 摘要 |
<p>882,440. Spring surfaces. STUBNITZ GREENS CORPORATION. March 17, 1958 [June 11, 1957], No. 8486/58. Class 52(4) A cap-like covering pad 10 of foamed plastics in one or more layers has a recess 12 in its peripheral wall to receive the border wire 14 of the upholstery spring assembly 20 and a wearresisting or reinforcing layer 18, which is a series of spaced strips, is bonded to the underside of the pad. U. S. A. Specification 2,218,749 is referred to.</p> |
