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| Patents for Charles W. MetCalfe | |||||
| Picture | Number | Date | Patentee | Title | |
| 295,572 | Mar. 25, 1884 | V. Martin, C.W. MetCalfe | Saw-mill head-block | ||
| 324,576 | Aug. 18, 1885 | C.W. MetCalfe | Saw-mill set-works | ||