Number | Date | Country | Kind |
---|---|---|---|
37069/75 | Sep 1975 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3046075 | Kantaer | Jul 1962 |
Number | Date | Country |
---|---|---|
570326 | Feb 1959 | BEX |
2324809 | Jan 1974 | DEX |
Entry |
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Derwent, Abstract of German Pat. 1,230,393, vol. 7, No. 3, 1966, p. 2. |
Derwent, France, Abstract of French Pat. 2114998, 11/20/70. |