Green Wrench Company (Marshall, MI) - Listed as a new Michigan Corporation in the August 26, 1922 edition of the Michigan Manufacturer & Financial Record. Organizers noted are: Paul Green, Paul Jones, and Clyde Cortright. The second article at the same link notes they took over the propery of the Lambert Machine Company. Property and equipment sold at auction 6/29/1923. Likely formed to produces Paul Green's Patent #1,423,793 for a pipe wrench.