US Patent: 1,160,432
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| Rule
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Patentee:
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| John M. Middleton (exact or similar names) - Savannah, GA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Feb. 11, 1915 |
| Granted: |
Nov. 16, 1915 |
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Russ Allen.
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Description: |
| An insert is placed in the rule at the 1 inch mark to allow dividers to set to the proper distance without maring the rule. |
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