In the 1920s this company made a dado and rabbeting machine that straddles the fuzzy border between machines and handheld power tools. This machine consists of a flat base mounted to the side of a router with integral gearbox. This router-with-gearbox appears to have been used for a handheld circular saw as well.
Please note that this web site is focused on woodworking machinery, and handheld power tools are outside its scope.
Information Sources
- Thanks to correspondent Jim Jones, who brought this maker to our attention.