The blade (100) has a notched toothing (118) formed on curved edge (112) of the blade. The notched toothing includes a series of teeth (120-123), where the teeth are arranged to follow one another according to a step (P), which varies along the curved edge. The step separates the adjacent teeth, and the size of the step is increased along the curved edge from one end to another end of the notched toothing. The toothing includes a pattern of the teeth. Each tooth includes a lengthened top part according to an arc of a circle with large radius of curvature. Independent claims are also included for the following: (1) a method for manufacturing a cutting blade (2) an installation for manufacturing a cutting blade.
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