Electrical and scientific apparatus Trademarks Filed in April 25, 1921
PHOROPTOR
Filed: April 25, 1921
Eye-Testing Instruments for Testing the Refractive Media and Motor Muscles of the Eye
Owned by: Reichert, Inc.
Serial Number: 71146698
RAY-O-VAC
Filed: April 25, 1921
Dry-Cell Batteries
Owned by: Ray-O-Vac Corporation
Serial Number: 71146704
