Number | Date | Country | Kind |
---|---|---|---|
57-207217 | Nov 1982 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
786633 | Dick | Apr 1905 | |
2229059 | Ditty et al. | Jan 1941 | |
2231291 | Morrison | Feb 1941 | |
2237734 | Grimsted | Apr 1941 | |
2730948 | Mitchell | Jan 1956 | |
2775199 | Claff et al. | Dec 1956 | |
3017545 | Meier | Jan 1962 | |
3745626 | Bray | Jul 1973 | |
3941054 | Springer | Mar 1976 |
Number | Date | Country |
---|---|---|
899942 | Jan 1949 | DEX |
368103 | Nov 1906 | FRX |
596749 | Oct 1925 | FRX |
1383860 | Nov 1964 | FRX |
317491 | Jan 1957 | SEX |
108479 | Apr 1964 | CHX |
259931 | Jan 1927 | GBX |
Entry |
---|
IBM Technical Disclosure Bulletin; vol. 19, No. 5; Oct. 1976. |
Xerox Disclosure Journal; vol. 3, No. 2; Mar./Apr. 1978. |