Number | Name | Date | Kind |
---|---|---|---|
1918338 | Kaufmann | Jul 1933 | |
2836611 | Exner et al. | May 1958 | |
4139548 | Tanaka et al. | Feb 1979 | |
4377706 | Hallgren | Mar 1983 | |
4395526 | White et al. | Jul 1983 |
Entry |
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