Number | Name | Date | Kind |
---|---|---|---|
3454474 | Woods et al. | Jul 1969 | |
3723261 | Byers et al. | Mar 1973 | |
4356815 | Spanoudis | Nov 1982 | |
4585530 | McMullen et al. | Apr 1986 |
Entry |
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43rd Annual Metal Finishing Guidebook Directory, Metals and Plastics Publications, Inc., (1975), p. 186. |