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| All Patents in class 100/906 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,650,495 | Nov. 22, 1927 | G.B. Damon | Briquetting apparatus | ||
| 2,810,181 | Oct. 22, 1957 | K. Ruckstuhl | Extrusion press | ||
| RE24,665 | Jul. 07, 1959 | K. Ruckstuhl | Extrusion press | ||
| 2,966,842 | Jan. 03, 1961 | J.B. Roche | Briquetting machines | ||
| 2,984,173 | May 16, 1961 | W.C. Briggs, J.B. Roche | Extrusion die for briquetting machine | ||