May 1930 Environmental control apparatus Trademarks by day
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Environmental control apparatus Trademarks filed in May 1930
CONTROLENS
Filed: May 13, 1930
METAL AND COMBINATION GLASS AND METAL GLOBES AND REFLECTORS
Owned by: HOLOPHANE COMPANY, INC.
Serial Number: 71300416
ALPHA ANAA PRODUCT
Filed: May 1, 1930
CHEMICAL STILLS, SPRAY WATER COOLING TOWERS, PNEUMATIC DUST CONVEYORS, PNEUMATIC DUST CONVEYOR SYSTEMS, AND AIR-DUCTS THEREFOR…
Owned by: ALPHA TANK & SHEET METAL MFG. CO.
Serial Number: 71299819
