US Patent: 378,928
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| Combination Ruler
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Patentee:
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| Herman Goldsmith (exact or similar names) - Brooklyn, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 30, 1887 |
| Granted: |
Mar. 06, 1888 |
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Ralph Brendler
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Description: |
| This is a simple metal ruler attached to a circular tube. The tube has removable plugs in each end to allow it to be used for pen storage, and a secondary base is provided to support the ruler off the paper to prevent blotting. |
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