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| All Patents in class D23/396 | |||||
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| Number | Date | Patentee | Title | Type | |
| D93,643 | Oct. 16, 1934 | J.R. Whitehead | Coal Burning Stoker | solid fuel stokers | |
| D123,310 | Oct. 29, 1940 | B.M. Guthrie | Stoker | solid fuel stokers | |