1. 1. SE Keniston , inventor. US Currency Protection Corp., assignee. Bendable currency security dye pack. US patent 5,196,828, January 14, 1992.
2. 2. TL Bernhardt , inventors. US Currency Protection Corp., assignee. Antitheft system with digitally coded signal. US patent 4,559,529, April 15, 1985.
3. 3. LJ Caparoni, RH Banfield, NB Cohen, HW Fogle, and MJ McCann , inventors. ICI Americas Inc., assignee. Currency Alarm Pack. United States patent 5,059,949, May 10, 1990.
4. 4. RC Johnson, WK Layfield, MJ Epple, GJ Burns, JJ Walker, and MJ Grajewski , inventors. ICI Americas Inc., assignee. Alarm Device. US patent 5,734,325, October 10, 1995.
5. 5. HW Fogle , inventor. ICI Americas Inc., assignee. Local-field type article removal alarm. US patent 4,975,680, January 16, 1990.