DE Patent: DE-7,214
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| Englischer Schraubenschlüssel mit loser Schraube
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Patentees:
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| August Osenberg (exact or similar names) - Hagen, Westphalia Germany |
| Gustav Boudriot (exact or similar names) - Hagen, Westphalia Germany |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Sep. 13, 1879 |
| Antedated: |
Jul. 27, 1878 |
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Patent Pictures:
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German patent 7214 - composite edited image |
Espacenet patent
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Stan Schulz
German patent 7214 in ESPACENET
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Description: |
| The specifications note the threaded shank of the "fixed" jaw is the weak point of the traditional "English" double bar coach wrench, and this patent provides for a replaceable screw, among other details of construction. |
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