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| Patents for Marshalltown Drop Forge Company | |||||
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| Number | Date | Patentee | Title | Type | |
| 923,665 | Jun. 01, 1909 | J.E. La Dow | Wrench | self-adjust wrenches | |
| 986,419 | Mar. 07, 1911 | J.R. Morris | Tool | combination tools | |