Number | Date | Country | Kind |
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13052/75 | Mar 1975 | UK |
Number | Name | Date | Kind |
---|---|---|---|
2799635 | Chester et al. | Jul 1957 | |
3833486 | Nobel et al. | Sep 1974 |
Entry |
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Herb Geduld, Metal Finishing, pp. 27-31, Mar. 1976. |
W. George Parks et al., The Electrochemical Soc., Preprint 69-14, (1936). |