US Patent: 496,123
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Folding Steel Measure Zig Zag Rule
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Patentee:
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Willie L. E. Keuffel (exact or similar names) - Hoboken, NJ |
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Patent Dates:
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Applied: |
Jun. 07, 1892 |
Granted: |
Apr. 25, 1893 |
Patent Pictures:
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Russ Allen.
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Description: |
Steel zig zag rule with pivot pins arranged to avoid contact with the pivot pins of adjacent segments.
Known example marked with manufacturer and patent date. |
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