May 1942 Environmental control apparatus Trademarks by day
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Environmental control apparatus Trademarks filed in May 1942
=AIROLITE=

=AIROLITE=

Filed: May 29, 1942
Ventilators of the Louvre Type, Both Adjustable and Stationary for Windows, Transoms, Doors, Walls, Floors, and Ceilings
Owned by: AIROLITE COMPANY, THE
Serial Number: 71453352

MONOGAS

MONOGAS

Filed: May 28, 1942
Atmosphere Correcting Gas Converters for Heat Treating Furnaces
Owned by: Sunbeam Equipment Corporation
Serial Number: 71453350

ENDOGAS

ENDOGAS

Filed: May 7, 1942
Atmosphere Correcting Gas Converters for Heat Treating Furnaces
Owned by: SECO/WARWICK OF DELAWARE, INC.
Serial Number: 71452879