March 1931 Environmental control apparatus Trademarks by day
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Environmental control apparatus Trademarks filed in March 1931
CERTIFIED CLIMATE
Filed: March 6, 1931
HUMIDIFIERS AND HUMIDIFYING SYSTEMS USED IN CONNECTION WITH AND AS A PART OF HEATING AND VENTILATING PLANTS OR SYSTEMS AND…
Owned by: PARKS-CRAMER
Serial Number: 71311845
