Number | Date | Country | Kind |
---|---|---|---|
53-114483 | Sep 1978 | JPX | |
53-114484 | Sep 1978 | JPX | |
53-118186 | Sep 1978 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3810195 | Kilroy et al. | May 1974 | |
3812495 | Venker | May 1974 | |
3834304 | Potter | Sep 1974 | |
3843955 | Pear | Oct 1974 | |
4164744 | Freude | Aug 1979 |
Number | Date | Country |
---|---|---|
278225 | Sep 1914 | DEX |
Entry |
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"Porous Coating For Type Element", by E. J. Bonafino, et al., IBM Tech. Disc. Bulletin, vol. 15, No. 4, Sep. 1972, p. 1290, 400-470. |