US Patent 10252429 Stationary cutting blade for a hair clipping device

A stationary cutting blade for a hair clipping device has a base body and a coined cutting teeth. The coined cutting teeth are spaced apart from each other, arranged on a front side of the base body, and each extend parallel to a longitudinal axis of the stationary cutting blade. A thickness ratio between the thickness of the base body and the thickness of the cutting teeth is larger than 1.1. Each cutting tooth has a substantially wedge-shaped cross-section with a scissor angle and a wedge angle, where the sum of the scissor angle and the wedge angle is smaller than 70°.