Number | Name | Date | Kind |
---|---|---|---|
462990 | Oppenheimer | Nov 1891 | A |
1356544 | Miller | Oct 1920 | A |
D137676 | Eisler | Apr 1944 | S |
2499483 | Foy | Mar 1950 | A |
2942379 | Oman et al. | Jun 1960 | A |
3164923 | Knott | Jan 1965 | A |
4451038 | Nagy | May 1984 | A |
5018450 | Smith | May 1991 | A |
5749799 | Jasperson | May 1998 | A |
5811159 | Chang | Sep 1998 | A |
6165041 | Lin | Dec 2000 | A |
6438878 | Fine et al. | Aug 2002 | B1 |
6533637 | Liao | Mar 2003 | B1 |
D494716 | Chang | Aug 2004 | S |
Number | Date | Country |
---|---|---|
29707183 | Sep 1997 | DE |
2256371 | Dec 1992 | GB |
04019692 | Jan 1992 | JP |
584204 | Dec 1977 | SU |