Electrical and scientific apparatus Trademarks Filed in March 8, 1952
"CASTELL"
Filed: March 8, 1952
RULES, CALCULATING RULES, TRIANGLES, AND T-SQUARES
Owned by: A.W. FABER-CASTELL PENCIL CO., INC.
Serial Number: 71626158
WESTCOTT
Filed: March 8, 1952
RULERS
Owned by: ACME UNITED CORPORATION
Serial Number: 71626184