US Patent: 825,934
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Ruler
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Patentee:
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Edward R. Pierson (exact or similar names) - Elizabeth, NJ |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Feb. 06, 1906 |
Granted: |
Jul. 17, 1906 |
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Ralph Brendler
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Description: |
This draftsman's ruler features finger-holes to allow it to be picked up without touching the edge, which may have ink on it. |
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