US Patent: 1,407,085
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Marking button
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Patentee:
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Henry V. Rau (exact or similar names) - Brooklyn, NY |
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Patent Dates:
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Applied: |
Apr. 26, 1918 |
Granted: |
Feb. 21, 1922 |
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Jeff Joslin Vintage Machinery entry for Edwin B. Stimpson & Son
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Description: |
This rivet-style "button" is used to permanently attach an identifying digit to an item, and the improvements are aimed at making the digit more legible and less prone to wear. |
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