US Patent: 2,076,704
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| Steel rule
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Patentee:
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| Frederick O. Carlson (exact or similar names) - New York, NY |
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Patent Dates:
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| Applied: |
Mar. 18, 1935 |
| Granted: |
Apr. 13, 1937 |
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Patent Pictures:
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1 | 2
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Patent 2,075,704 - edited drawing |
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Stan Schulz
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Description: |
| Tape and case design to facilitate inside measurement, etc. Case dimension + hook thickness are factored into the markings to provide accurate readings. [In the illustration, the case + "hook" = 2 inches]
The design was marketed by Master Rule Mfg. as "TUFBOY" in 1940. The patent number appears on relevant examples. |
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