Number | Date | Country | Kind |
---|---|---|---|
4-013519 | Jan 1992 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1297142 | Gibbons | Mar 1919 | |
2543154 | Cox | Feb 1951 | |
3186287 | Wehlau | Jun 1965 | |
3754696 | Rietbergen | Aug 1973 | |
3784264 | Jackson, Jr. | Jan 1974 | |
3829184 | Chevret | Aug 1974 | |
4042186 | Moosberg | Aug 1977 | |
4097006 | Saito | Jun 1978 | |
4113305 | Hampton | Sep 1978 | |
5025335 | Stefansky | Jun 1991 | |
5175661 | Mizuno et al. | Dec 1992 |
Number | Date | Country |
---|---|---|
2150532 | Jul 1985 | GBX |
Entry |
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Patent Abstracts of Japan, vol. 068, No. 010 (P-437) 18 Mar. 1986-JP-A-60 205 884 (Matsushita Denki) 17 Oct. 1985 *abstract*. |