US Patent: 419,467
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Curve scriber
Magic pattern rule
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Patentee:
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| Angus McKenzie (exact or similar names) - Cleveland, OH |
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Patent Dates:
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| Applied: |
Jun. 08, 1889 |
| Granted: |
Jan. 14, 1890 |
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Patent Pictures:
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Patent drawing |
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Russ Allen
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Description: |
| Lufkin's Magic Pattern Rule patent. The rule appears in the Mwtca of Luflin's catalog 10. For laying out sheet metal elbow patterns. It came with a linen chart 19 x 23. Catalog 10 lists the rule with chart for $7.50, chart only .75 circa 1920. |
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