Number | Date | Country | Kind |
---|---|---|---|
1-066209 | Mar 1989 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3750849 | Berkovitz | Aug 1973 | |
4064971 | Iwasaka et al. | Dec 1977 | |
4709787 | Uchino | Dec 1987 | |
4723627 | Ito | Feb 1988 | |
4897012 | Brewer | Jan 1990 |
Number | Date | Country |
---|---|---|
2154923 | May 1973 | DEX |
53-119549 | Oct 1978 | JPX |
5431143 | Mar 1979 | JPX |
2203568A | Oct 1988 | GBX |
Entry |
---|
Stone, "Double Decker", Jan. 18, 1974, Article from Washington Star-News. |