US Patent: 1,002,749
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Drawing Implement Beam Compass
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Patentee:
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George J. Petersen (exact or similar names) - Chicago, IL |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Oct. 24, 1910 |
Granted: |
Sep. 05, 1911 |
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Ralph Brendler
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Description: |
This is a draftsman's compass with several types of marking points provided. These points can be retracted when not in use. |
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