US Patent: 1,404,794
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Beam Compass
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Patentee:
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Charles C. Reitenbaugh (exact or similar names) - Rock Island, IL |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jun. 04, 1920 |
Granted: |
Jan. 31, 1922 |
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Ralph Brendler
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Description: |
This draftsman's compass features a micro-adjust for one leg and a quick-change mechanism for the pencil lead. |
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