Inventor
GINGERICH DAVID L
4 patents
Patents
4 patentsUS4236482ADec 2, 1980
Apparatus for applying sealing material to envelopes
CHAMPION INT CORP25 citations80
US4251566AFeb 17, 1981
Gum thickness regulator
CHAMPION INT CORP23 citations78
US4232592ANov 11, 1980
Envelope forming machine and method
CHAMPION INT CORP11 citations69
US4233931ANov 18, 1980
Envelope feed apparatus
CHAMPION INT CORP3 citations60