US Patent: 2,331X
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| Spring Pen Ruler
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Patent Dates:
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| Granted: |
Jun. 21, 1815 |
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Joel Havens
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Description: |
| Lemuel Hedge, patented a process for ruling blank book pages. On 03 Mar, 1817 (patent # 2,746X), he patented a revolving machine for the same purpose. He formed a partnership with Thomas Pomroy, the town printer, to manufacture these machines.
Only about 2000 of the almost 10000 X-patent documents were recovered.
Because of the Patent Office fire in Dec. 1836, little is known about this patent. There are no patent drawings available. This patent is in the database for reference only. |
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