101 Universal Wrench Company
101 Universal Wrench Company (Bartow, FL) - According to a 11/11/1922 article in The Tampa Times, W. M. Lawrence is the inventor of the wrench, and they are manufactured by Cummings Machine Works of Boston, MA. Officers are noted as:
- John Clark - Pres.
- R. L. Hughes - VP
- J. A. Johnson - Sec/Treas.
- W. M. Lawrence - Inventor / Director
- Leffey Thompson - Director
- L. C. Johnson - Director
- J. Harris - Director
Willse M. Lawrence Patent #1410816 - Spark Plug Wrench
Advertisement from November, 1922 Popular Mechanics.
Referenced Tampa Times Article