Number | Date | Country | Kind |
---|---|---|---|
PF6545 | Oct 1982 | AUX |
Number | Name | Date | Kind |
---|---|---|---|
688070 | Denn | Dec 1901 | |
1616255 | Douglas | Feb 1927 | |
1979095 | Braunig | Oct 1934 | |
2061456 | Falk | Nov 1936 | |
2648972 | Diesel | Aug 1953 | |
3623345 | Solitanner | Nov 1971 | |
3709006 | Seidewand | Jan 1973 | |
4083212 | Proefrock | Apr 1978 | |
4272975 | Patriquin | Jun 1981 | |
4317347 | Martikainen | Mar 1982 | |
4789638 | Roberts et al. | Feb 1974 |
Number | Date | Country |
---|---|---|
165562 | Apr 1954 | AUX |
412722 | Dec 1966 | AUX |
498983 | Apr 1978 | AUX |
641072 | Aug 1950 | GBX |
2084237 | Apr 1982 | GBX |
2129045 | May 1984 | GBX |
Entry |
---|
Robinson, R. L., "Complete Course in Professional Locksmithing", Chapter 13, pp. 126 to 140 (The Disc Tumbler Lock Mechanism). |