Dowetch Trademarks

DOWETCH
ETCHING MACHINES USED IN PHOTOENGRAVING
Expired  ·  October 25, 1968  ·  72310551  · 
DOWETCH
PHOTOENGRAVING CHEMICALS
Expired  ·  April 12, 1957  ·  72028034  · 
DOWETCH
METAL SHEETS FOR USE IN PHOTOENGRAVING FIELD
Expired  ·  April 12, 1957  ·  72028031  · 
DOWETCH FACTS
TRADE NEWS BULLETIN
Expired  ·  April 21, 1969  ·  72325017  ·