Number | Date | Country | Kind |
---|---|---|---|
8619008[U] | Jul 1986 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
195324 | Atkinson | Sep 1877 | |
1602847 | Dover | Oct 1926 | |
2410914 | Williams | Nov 1946 | |
2477046 | Davenport | Jul 1949 | |
2532852 | Oaks | Dec 1950 | |
2595672 | Greenwood | May 1952 | |
3053619 | French | Sep 1962 | |
4543803 | Keyasko | Oct 1985 |
Number | Date | Country |
---|---|---|
161942 | Mar 1955 | AUX |
Entry |
---|
Modern Plastics, Jun. 1946, pp. 120-122. |