Nitric ester derivatives and their use in the treatment of gastrointestinal tumours

摘要

PCT No. PCT/EP97/04695 Sec. 371 Date Mar. 3, 1999 Sec. 102(e) Date Mar. 3, 1999 PCT Filed Aug. 28, 1997 PCT Pub. No. WO98/09690 PCT Pub. Date Mar. 12, 1998A locking device particularly for snowboards which comprises a circular plate which is rigidly coupled to a board. The device is constituted by a rotating body which is rotatably associated with the plate and is provided with elements for engaging and temporarily compressing complementarily shaped grip elements associated with the sole of a shoe. There are also provided elements for temporarily locking the rotation of the rotating body.