US Patent: 825,150
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Attachment for Carpenters' Squares
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Patentee:
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Robert L. McCartney (exact or similar names) - Ottumwa, IA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jan. 18, 1905 |
Granted: |
Jul. 03, 1906 |
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Ralph Brendler
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Description: |
This design is for a secondary arm to be attached to a standard framing square, to allow it to be more easily used for laying out rafters and stairs. |
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