US Patent: 1,001,206
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Illuminated Spirit-Level
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Patentee:
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James Irwin McCullough (exact or similar names) - Davenport, IA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jan. 05, 1911 |
Granted: |
Aug. 22, 1911 |
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Ralph Brendler
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Description: |
This level features a built in light bulb and battery to facilitate reading in dim situations. |
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