Number | Date | Country | Kind |
---|---|---|---|
4-361366 | Dec 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
2296346 | Hearn | Sep 1942 | |
3106436 | Weiss | Oct 1963 | |
3152853 | Scott | Oct 1964 | |
5145408 | Houtteman et al. | Jan 1992 | |
5281770 | Kamei et al. | Jan 1994 |
Number | Date | Country |
---|---|---|
0326141 | Jan 1989 | EPX |
0148878 | Jun 1990 | JPX |
0833639 | Dec 1956 | GBX |
1209158 | Dec 1967 | GBX |
2256541 | Aug 1992 | GBX |
Entry |
---|
Western Electric Technical Digest No. 12 by R. E. Hotze & J. B. Krepp pp. 15 & 16, Oct. 1968. |