Interesting flyier from Western Electric.

In the olden days, the Lansing companies ads touted design features such as edge-wound coils, machined top plates, alnico mags, cast not stamped frames, etc. and also used to discuss technologies adapted from Bell Labs and Western Electric.

Does anyone know if either Bell Labs or W.E. held the original patents for edge-wound coils, alnico motors and the like in these early designs? The histories of both Lansing companies that I have read recently don't cover these points.