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US10 patents
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US5696690ADec 9, 1997
Sheet stacking apparatus
CHECK TECH CORP24 citations91
US5644494AJul 1, 1997
Printing system
CHECK TECH CORP20 citations90
US4560293ADec 24, 1985
Document printing method and apparatus
CHECK TECH CORP47 citations90
US6604017B1Aug 5, 2003
Printing system
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US5867393AFeb 2, 1999
Printing system
CHECK TECH CORP16 citations80
US5748483AMay 5, 1998
Printing system
CHECK TECH CORP12 citations72
US5917727AJun 29, 1999
Sheet registration system
CHECK TECH CORP15 citations70
US4862225AAug 29, 1989
Power supply sequencing circuit for flash fuser
CHECK TECH CORP7 citations70
US5790408AAug 4, 1998
Error recovery in a printing system
CHECK TECH CORP3 citations60
US5237898AAug 24, 1993
Autotaper
CHECK TECH CORP10 citations58