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Number | Name | Date | Kind |
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3906098 | Barlow et al. | Sep 1975 | |
4014677 | Fischer | Mar 1977 |
Number | Date | Country |
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0013143 | Jul 1980 | EPX |
112280 | Jun 1984 | EPX |
2520381 | May 1975 | DEX |
6065804 | Jun 1981 | JPX |
1388825 | Mar 1975 | GBX |
Entry |
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