US Patent: 32,410
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Calipers
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Patentee:
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J. H. Call (exact or similar names) - Springfield, MA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Granted: |
May 28, 1861 |
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Ralph Brendler
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Description: |
This caliper uses a combination of a thumbscrew-set quadrant for fast
setting, with a micrometer screw for fine adjustment.
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