Number | Name | Date | Kind |
---|---|---|---|
204502 | Osselin et al. | Jun 1878 | |
526182 | Fritsche | Sep 1894 | |
784125 | Sanden | Mar 1905 | |
1190831 | Werner | Jul 1916 | |
3304708 | Baehni | Feb 1967 | |
3672352 | Summers | Jun 1972 |
Entry |
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Kubo, "IEEE Transactions on Biomedical Engineering," vol. 17, No. 2, Apr. 1970, pp. 163-166. |