GB Patent: GB-188,601,870
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| Wrenches
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Patentees:
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| Frank Armstrong (exact or similar names) - Bridgeport, CT |
| Nathaniel W. Vandegrift (exact or similar names) - Bridgeport, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 09, 1886 |
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Patent Pictures:
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F. Armstrong & N. W. Vandegrift patent registered Feb. 9, 1886 - edited from "Abridgments of Specifications" |
Espacenet patent
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Stan Schulz
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Description: |
| Quick adjust wrench with a toggle lever and toothed dog in the movable jaw - corresponds to U.S. patent 335,986 granted to Frank Armstrong and Nathaniel W. Vandegrift on Feb. 9, 1886.
Note: British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #1,870 of the year 1886. |
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