DE Patent: DE-9,994
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| Verstellbarer Schraubenschlüssel
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Patentees:
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| Alfons Tellering (exact or similar names) - Bergisch-Gladbach, Germany |
| unk Kottgen (exact or similar names) - Bergisch-Gladbach, Germany |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jun. 08, 1880 |
| Antedated: |
Dec. 16, 1879 |
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Patent Pictures:
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German patent 9994 - composite edited image |
Espacenet patent
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Stan Schulz
German patent 9994 in ESPACENET
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Description: |
| The adjustable jaw slides, and is held in adjustment by a screw-activated gripping block that engages fine rack teeth on the face of the shank. Contemporary descriptions of the patent do not include explicit statement the tool was produced.
German patent Klasse 87 (a) Gruppe 8. |
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