US Patent: 1,465,295
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Caliper Gauge
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Patentee:
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Max Bartholdy (exact or similar names) - Essen, Germany |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Nov. 09, 1921 |
Granted: |
Aug. 21, 1923 |
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Joel Havens
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Description: |
Knight & brothers - patent attorneys
Specification signed in Germany, 13 Oct 1921. |
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