US Patent: 42,012
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Paper-Ruler
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Patentee:
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David Munson (exact or similar names) - Indianapolis, IN |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
Mar. 22, 1864 |
USPTO (New site tip) Google Patents
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Ralph Brendler
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Description: |
This is a simple ruler of stamped sheet metal, with a roller to allow
it to mark parallel lines or be used as a straightedge for tearing strips.
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