Title: |
1901 Ad-Doebler Mfg. Co., Weir Drill Chuck |
Source: |
Machinery, V7, Aug. 1901, pg. 66 |
Insert Date: |
7/20/2023 7:46:01 PM |
US Patent: 549,837
https://datamp.org/patents/displayPatent.php?number=549837&typeCode=0 |
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1901 Doebler Mfg. Co., Weir Drill Chuck
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