Baker & McKenzie
All purpose saw blade
 A new blade, and a method of cutting therewith, having repeating sets of teeth, each set having sub-sets which differ from each other in at least one cutting characteristic including straight teeth, primary cutting teeth which are left-sided and right-sided and secondary cutting teeth which are left-sided and right-sided, said secondary cutting teeth having a large relief angle. 
Armstrong-Blum Manufacturing Company Amada Company Limited
Y Y B B Y
Y10T Y10T B23D B23D Y10T
additional additional inventional inventional additional
Donald L. Akiyoshi Kunihiko
Armstrong Yoneda Okada