Number | Date | Country | Kind |
---|---|---|---|
7914203 | Apr 1979 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3641811 | Gnaedinger et al. | Feb 1972 | |
3790198 | Hagen | Feb 1974 | |
4126514 | Wonn | Nov 1978 |
Number | Date | Country |
---|---|---|
11635 | Aug 1971 | AUX |
1522644 | Apr 1968 | FRX |
2126794 | Oct 1972 | FRX |
1137519 | Dec 1968 | GBX |
1241287 | Aug 1971 | GBX |
Entry |
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Crutzen, S. J. et al., "Application of Tamper--Resistant Identification and Sealing Techniques for Safeguards", pp. 305-338. |