Single edge razor blade with integral back

Abstract From the Canadian patent

An integral one-piece single edge razor blade adapted for mounting in a hand tool of the type employed for shaving scraping or cutting comprising:, an elongated planar body having forward and rearward faces an upper end and a lower end, said lower end forming a longitudinally extending cutting edge, a force-bearing backing portion integrally formed at said upper end of said planar body and extending longitudinally along said planar body for receiving scraping and cutting forces applied to said blade by an interconnected hand tool, said backing portion having opposed forward and rearward walls generally parallel to said planar body to provide a generally uniform transverse backing thickness …