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| Patents for Edmund Leo Wall | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,997,890 | Apr. 16, 1935 | E.L. Wall | Universal Tracer | ||
| 1,997,891 | Apr. 16, 1935 | E.L. Wall | Universal Die Sinking Attachment for Horizontal Milling Machines | ||
| 1,997,892 | Apr. 16, 1935 | E.L. Wall | Duplicating Machine | ||
| 2,007,231 | Jul. 09, 1935 | E.L. Wall | Duplicating Machine | ||
| 2,007,232 | Jul. 09, 1935 | E.L. Wall | Automatic Carriage Control for Duplicating Machinery | ||
| 2,235,092 | Mar. 18, 1941 | E.L. Wall | Duplicating Machine | ||