US Patent: 1,402,509
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| Compasses
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Patentee:
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| Antoni Lysiak (exact or similar names) - Manchester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 11, 1921 |
| Granted: |
Jan. 03, 1922 |
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Ralph Brendler
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Description: |
| This is a strange design, featuring two compasses hinged at the top. This allows four different settings to be maintained with one tool, but it seems like it would be very difficult to set accurately. |
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