US Patent 11175120 Device for measuring, marking, cutting, and sewing material

A device for measuring, marking and cutting material, the device formed of a clear, transparent, translucent or tinted substrate that is either rigid, semi-rigid, flexible or bendable and having in one implementation, a plurality of first and second lines are formed on the substrate to define an unbroken, continuous channel in which a plurality of windows are formed to include a grid line segment to aid in aligning the device with the underlying material. Alternatively or in addition, the device includes one or more visually perceptible invisible lines bounded by opposing line segment pairs and terminal ends to aid in viewing and aligning with underlying material.