Title: |
1921 Ad-Scully-Jones & Co., Wear Ever Woodruff Chuck |
Source: |
Hitchcock's Machine Tool List, Jan 1921, pg. 110 |
Insert Date: |
2/28/2023 7:20:17 PM |
US Patent: 1,411,335
https://datamp.org/patents/displayPatent.php?number=1411335&typeCode=0 |
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1921 Scully-Jones & Co., Wear Ever Woodruff Chuck
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