| 摘要 |
1,064,521. Walls and ceilings. HUNTER DOUGLAS INTERNATIONAL Ltd. Aug. 4, 1964 [Aug. 2, 1963], No. 31041/64. Heading E1W. A stringer for ceilings or walls comprise flanges having bent out tongues 17 adapted to support channel shaped lamellae having rims which are either curved or rectangularly bent twice. |
