| 摘要 |
1,131,694. Tracks for sliding windows. FIRMA ELTREVA, A.G. 28 March, 1967 [25 March, 1966], No. 14120/67. Heading E1J. The bottom member 1 of the main frame of a sliding sash window is provided with a section, but may also be of dovetail section re-entrant channel 2, shown as of part circular and a steel run rail 3, preferably of chrome steel, is accommodated and held in the groove. |
