| 摘要 |
PCT No. PCT/SE84/00056 Sec. 371 Date Oct. 18, 1984 Sec. 102(e) Date Oct. 18, 1984 PCT Filed Feb. 16, 1984 PCT Pub. No. WO84/03221 PCT Pub. Date Aug. 30, 1984.Device for the adjustment of ball game rackets which is intended to bring about the desired tension in a racket surface through adjustment of the tension in the strings and which consists of a triangular holder provided with a groove for the string and with an adjustment screw whose tip is directed towards the apex of the holder, the screw tightening a string to the desired result by pressure. |
