The fixing device fixes a blade (1) with shaped foot (3) and axial grooves (6) and a gap (8) for a locking plate (9) with middle part (10) and side parts (11, 12), one of which is bent up after assembly against a blade foot endface (15, 16). The side part (11) on the gas output side is offset by about 90 deg from the middle part, which it overlaps both upwards and downwards. The locking plate is in one piece.
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