Number | Name | Date | Kind |
---|---|---|---|
1195044 | Lockwood | Aug 1916 | |
1438611 | Rverson | Dec 1922 | |
2583013 | Patterson | Jan 1952 | |
3892550 | Riis | Jul 1975 | |
3950152 | Guon | Apr 1976 |
Entry |
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R. Bauer, "Recent Developments in Automated Vacuum Sintering", pp. 16/16-13. |
The Demister Styles and Materials, Otto H. York Company, Inc. Bulletin 44. |