|
US6452873B1
|
|
Visually changing paper time indicator employing controllable barrier
|
|
US6513710B1
|
|
Trade show attendee control, lead collection and event control system
|
|
US6446865B1
|
|
Reflective badge security identification system
|
|
US6295252B1
|
|
Fixating image in migrating dye indicator
|
|
US6197396B1
|
|
Identification card strip assembly
|
|
WO9936836A1
|
|
Identification badge verification system
|
|
AU7598898A
|
|
Identification card strip assembly
|
|
US5957458A
|
|
Substrate with hidden images and method of making such images appear
|
|
CA2283451A1
|
|
Substrate with hidden images and method of making such images appear
|
|
US6086971A
|
|
Identification card strip and ribbon assembly
|
|
US5755175A
|
|
Visible seal for containers
|
|
US5947369A
|
|
Electronic time badge
|
|
US5785354A
|
|
Self-expiring identification band
|
|
US5822280A
|
|
Long term rapid color changing time indicator employing dye absorbing layer
|
|
US5640742A
|
|
Spring badge clip
|
|
US5602804A
|
|
Long term rapid color changing time indicator
|
|
US5446705A
|
|
Time indicator having discrete adhesive
|
|
US5633835A
|
|
Long term rapid color changing time indicator
|
|
US5715215A
|
|
Convention badge
|
|
US5699326A
|
|
Time indicator
|
