Bauman, John W. & Son

​John W. Bauman & Son (Sassamansville, PA)​ - Mr. Bauman was much better known for his Apple Butter and Cider making business than for wrenches, but in 1935 he invented a pipe wrench, and produced it himself for a short time.  Mr. Bauman passed away in 1945 and his obituary refers to him as "The Apple Butter Man."

DATAMP Patent

Trademark:

BAUMO (Pipe Wrenches) (First Use 9/14/1935)