Inventor
SEIFERT HARRY ALLEN
US4 patents
Patents
4 patentsUS5961152AOct 5, 1999
Security paper having an embedded and deformed security thread and a process for making the security paper
STANDARD REGISTER CO20 citations89
US5944927AAug 31, 1999
Security paper having an embedded security thread and a process for making the security paper
STANDARD REGISTER CO34 citations89
US6139065AOct 31, 2000
Process for making security paper
STANDARD REGISTER CO11 citations70
US6031020AFeb 29, 2000
Cancellation of micr-readable documents by application of an ink containing magnetic particles
STANDARD REGISTER CO4 citations60