Number | Date | Country | Kind |
---|---|---|---|
10601/75 | Aug 1975 | CHX |
Number | Name | Date | Kind |
---|---|---|---|
3620590 | Barker | Nov 1971 | |
3732640 | Changnon | May 1973 | |
3802101 | Scantlin | Apr 1974 | |
3869301 | Decker et al. | Mar 1975 | |
3894756 | Ward | Jul 1975 | |
3919447 | Kilmer, Jr. et al. | Nov 1975 |
Entry |
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Fant et al., "Infrared Transparent Credit Card," IBM Tech. Discl. Bulletin, vol. 9, No. 7, Dec. 1966, p. 870. |