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| Patents for Walter Cockcroft | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,368,119 | Feb. 08, 1921 | W. Cockcroft | Tool Holder | lathe tool holders and tool posts | |
| 1,410,528 | Mar. 21, 1922 | W. Cockcroft | Tool Holder | lathe tool holders and tool posts | |