US Patent: 85,991
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Improvements in combined rule and protractor
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Patentee:
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Reuben A. Briggs (exact or similar names) - New York, NY |
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Patent Dates:
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Granted: |
Jan. 19, 1869 |
Patent Pictures:
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USPTO (New site tip) Google Patents
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Russ Allen
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Description: |
An example appeared on ebay. Rule is mahogany and measures 16 7/8" long. It is stamped "MNFD BY L. MORGAN & SON, 650 E 12 ST. N.Y. ". Also stamped on the wheel on top "PAT. JAN. 19, 69" |
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