Number | Date | Country | Kind |
---|---|---|---|
3619828 | Jun 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
1674453 | Sloper | Jun 1928 | |
2067034 | Whiteley | Jan 1937 | |
2362667 | Schmidt | Nov 1944 | |
4620803 | Veziriana | Nov 1986 |
Number | Date | Country |
---|---|---|
487677 | Dec 1929 | DE2 |
971722 | Mar 1959 | DEX |
518923 | Jun 1921 | FRX |
297875 | Oct 1928 | GBX |
1068448 | May 1967 | GBX |
Entry |
---|
Patent Abstracts of Japan, Band 10, Nr. 193 (Jul. 8, 1986). |