US Patent: 378,894
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Pocket-Rule
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Patentee:
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Joseph McLean (exact or similar names) - Rockville, CT |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Mar. 16, 1887 |
Granted: |
Mar. 06, 1888 |
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Ralph Brendler
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Description: |
This design adds a sprint-activated ratcheting detent to a standard rule joint, allowing it to accurately hold a specific angle. |
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