Number | Date | Country | Kind |
---|---|---|---|
3044113 | Nov 1980 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
3016308 | Macaulay | Aug 1957 | |
3079351 | Staneslow et al. | Feb 1963 | |
3516941 | Matson | Jun 1970 | |
4162165 | Schwab | Jul 1979 | |
4171981 | Austin et al. | Oct 1979 | |
4235458 | Austin et al. | Nov 1980 | |
1581757 | Dec 1980 |
Number | Date | Country |
---|---|---|
26914 | Apr 1981 | EPX |
1568663 | Mar 1970 | DEX |
2719914 | Nov 1977 | DEX |
2818976 | Nov 1978 | DEX |
2820600 | Dec 1978 | DEX |
2826939 | Jan 1979 | DEX |
1318519 | Jan 1963 | FRX |
48-12255 | May 1973 | JPX |
2021512 | Dec 1979 | GBX |
1570042 | Jun 1980 | GBX |
Entry |
---|
Derwent Japanese Patents Report, vol. U, No. 17, Old-Law, issued May 29, 1973, Section G, p. 2, Auszug 23965U & JP-B-73, 12255, (Honshu Paper Mfg. Co. Ltd.), (11-26-69). |