US Patent: 1,446,647
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| Marking tool
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Patentee:
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| Kurt Hirtschulz (exact or similar names) - Berlin, Germany |
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Patent Dates:
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| Applied: |
Jun. 12, 1920 |
| Granted: |
Feb. 27, 1923 |
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Patent Pictures:
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1 | 2
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Jeff Joslin
Vintage Machinery entry for Marburg Brothers, Inc.
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Description: |
| This is the "All-in-One steel figure". A brief article in the July 1921 "Western Machinery World" explains how it is used to stamp numbers, without any risk of upside-down or wrong-sized digits. |
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