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| Patents Granted on 1837-03-25 | |||||
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| Number | Date | Patentee | Title | Type | |
| 148 | Mar. 25, 1837 | T.W. Harvey | Improvements in Machines for Nicking and Turning the Heads of Wood-Screws | screw machines | |
| 149 | Mar. 25, 1837 | T.W. Harvey | Machine for Cutting and Heading Wire for the Manufacture of Wood-Screws | screw machines | |
| 150 | Mar. 25, 1837 | A. Wilbur | Machine for sawing shingles, clapboards, laths, and various other species of lumber | shingle machines | |