Collection of pages from K&E catalogs for the 4215 family of Radial Planimeters


The Radial Planimeter is specifically designed for finding the mean value of circular indicator diagrams.

The following models are part of the 4215 family:


The 4215 Radial Planimeter first appeared in the 1921 catalog.

Links to catalog pages for the 4215 family of planimeters: