US Patent: 396X
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| Astronomical Quadrant
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Patentee:
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| Matthew C. Groves (exact or similar names) - Boston, Suffolk County, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Sep. 03, 1802 |
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Joel Havens
Wikipedia entry for Quadrant instuments
Letter from Matthew C. Groves to Thomas Jefferson, August 2, 1802
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Description: |
| Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.
Matthew C. Groves wrote a letter to Thomas Jefferson on 02 Aug., 1802 that listed Boston, MA as his residence. |
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