US Patent: 718,300
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| Rule Attachment
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Patentee:
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| Mahlon G. Bailey (exact or similar names) - San Jose, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 08, 1902 |
| Granted: |
Jan. 13, 1903 |
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Russ Allen.
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Description: |
| Attachment that allows a regular rule to be used to measure and layout angles. |
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