US Patent: 706,242
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Measuring Rule Graduations for Rulers
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Patentee:
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Daniel Latshaw (exact or similar names) - Philadelphia, PA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jan. 25, 1902 |
Granted: |
Aug. 05, 1902 |
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Ralph Brendler
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Description: |
This patent covers a special kind of graduation to be used for rules. The length of the 1/4, 1/2, and 3/4 ticks are proportional to their measurement, supposedly facilitating the rapid reading of the scale. |
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