US Patent: 433,570
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Plumb-level
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Patentee:
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Niels Jensen (exact or similar names) - Minneapolis, MN |
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Patent Dates:
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Applied: |
Apr. 11, 1890 |
Granted: |
Aug. 05, 1890 |
Patent Pictures:
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Image courtesy and © Fine Tool Journal, http://www.finetoolj.com/ |
USPTO (New site tip) Google Patents
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Jeff Joslin
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Description: |
Examples of this inclinometer are rare. |
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