October 1927 Environmental control apparatus Trademarks by day
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Environmental control apparatus Trademarks filed in October 1927
THE NATIONAL SYSTEM
Filed: October 29, 1927
WARM-AIR HEATING, FORCE CIRCULATING, AND VENTILATING SYSTEMS AS A COMPLETE UNIT OR PARTS THEREOF EQUIPPED FOR COAL, GAS,…
Serial Number: 71256785
RAY-O-VAC
Filed: October 7, 1927
DRY CELLS FOR ELECTRIC BATTERIES, PORTABLE ELECTRIC FLASH LIGHTS OR ELECTRIC TORCHES, AND ELECTRIC FLASHLIGHT CASES
Owned by: RAYOVAC CORPORATION
Serial Number: 71255748