Number | Date | Country | Kind |
---|---|---|---|
296 12 584 | Jul 1996 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
349678 | Applegate | Sep 1886 | |
590695 | Alcorn | Sep 1897 | |
1238994 | Erickson | Sep 1917 | |
2348071 | Johnstone | May 1944 | |
3080185 | Walker | Mar 1963 | |
3423957 | Palmer | Jan 1969 | |
3542178 | Ripple | Nov 1970 | |
3704602 | Einhorn | Dec 1972 | |
4718879 | Wada | Jan 1988 | |
4752683 | McGuire | Jun 1988 | |
4846760 | Betterton et al. | Jul 1989 | |
5407294 | Giannini | Apr 1995 | |
5501542 | Hall, Sr. | Mar 1996 | |
5708496 | Barnett et al. | Jan 1998 |
Number | Date | Country |
---|---|---|
2 593 864 | Aug 1987 | FRX |
2 633 349 | Dec 1989 | FRX |
91 13 604U | Apr 1992 | DEX |
43 40 064 C1 | Jan 1995 | DEX |
Entry |
---|
Ernst, A., Digitale Langen-und Winkelme Sstechnik, [Digital Longitudinal and Angular Metrology], Verlag Modern e Industrie, 3rd ed., p. 40 (1989). |