May 23, 1939 Trademark Filings

DYNAMAX
X-RAY TUBES AND HOUSINGS THEREFOR, USED FOR THERAPEUTIC PURPOSES
Cancelled  ·  May 23, 1939  ·  71419725  · 
DUPONT
[ CELLULOSE ACETATE PLASTICS, CELLULOSE FILM, METHYL METHACRYLATE MOLDING POWDER, POWDERED GLASS, ] RESINOUS PLASTICS [ , RESINS, SILICA ]
Registered  ·  May 23, 1939  ·  71419715  · 
dupont