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| All Patents in class 15/93.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,774,586 | Dec. 18, 1956 | A.F. Becker | Floor scraping machine having floating scraper | ||
| 2,784,482 | Mar. 12, 1957 | A.N. Emmons | Abrading element | cutterheads | |
| 2,940,324 | Jun. 14, 1960 | P. Belzner | Wobble Drive | ||
| 3,026,550 | Mar. 27, 1962 | R.S. Bollin | Apparatus for Preparing Tubing for a Sweated Joint | pipe deburring machines | |