US Patent: 352,070
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| Magnetic Tack-Hammer
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Patentee:
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| Arthur R. Robertson (exact or similar names) - Somerville, MA |
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Patent Dates:
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| Applied: |
May 22, 1886 |
| Granted: |
Nov. 02, 1886 |
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Patent Pictures:
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Jeff Joslin (dm)
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Description: |
| The primary focus of this patent is on the "horseshoe" shaped magnetic portion of the hammer. Robertston claims this allows for a stronger magnet to hold larger nails, or smaller brads/tacks more securely, than provided by earlier "bar" type magnetic hammers. He also refers to the horseshoe magnet feature in a 1902 patent (710615). |
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