Number | Date | Country | Kind |
---|---|---|---|
3-064853[U] | Jul 1991 | JPX | |
3-065579[U]JPX | Jul 1991 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
1584080 | Dinkelberg | May 1926 | |
2916166 | Bigler | Dec 1959 | |
2970705 | De Witt, Jr. et al. | Feb 1961 | |
3599815 | Bianchi | Jul 1969 | |
3846860 | Kummerman | Nov 1974 | |
4768914 | Sing | Sep 1988 |
Number | Date | Country |
---|---|---|
0380711 | Jan 1989 | EPX |
0340673 | Apr 1989 | EPX |
0004686 | Jan 1983 | JPX |
1125282 | Aug 1968 | GBX |
2229979 | Oct 1990 | GBX |
Entry |
---|
Patent Abstracts of Japan, vol. 10, No. 291 (M-522)(2347) Oct. 3, 1986 & JP-A-61 105 288 (Kurushima Dock K.K.). |