Chamberlin & Freudenreich
American patent agent Chamberlin & Freudenreich were the agents for Patent US-1913-1160419. They are not exactly listed in the 1906 patent attorney register, or the 1907–1910 supplement, and there is a gap in the years following. As inventor George Raymond Lawrence lived in Chicago, it is reasonable to guess that Chamberlin might be Walter H. Chamberlin, Bedford Building, Chicago, registration number 417. There was a William F. Freudenreich listed in 1906, located in Boston.
William F. Freudenreich and Ruth E. Zetterwall were witnesses to Patent US-1913-1160419, on the final text page of said patent. H. S. Gaither and Ruth E. Zetterwall are the witnesses shown on the final diagram page.[1]
Patents for which Chamberlin & Freudenreich was the patent agent
- Patent US-1913-1160419 (Inventors: George Raymond Lawrence, English title: Internal-combustion engine)
