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| Patents for Erastus M. Shaw | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,459X | Oct. 20, 1834 | E.M. Shaw | Mortising and tenoning machine | mortising machines | |
| 8,758X | Apr. 08, 1835 | E.M. Shaw | Mortising and tenoning machine | mortising machines | |
| 9,537X | Mar. 23, 1836 | E.M. Shaw | Mortising machine | mortising machines | |
| 937 | Sep. 22, 1838 | E.M. Shaw | Machine for mortising timber | mortising machines | |