Title: |
1921 Ad-Mummert-Dixon Co., Facing Heads |
Source: |
Hitchcock's Machine Tool List, Jan 1921, pg. 118 |
Insert Date: |
3/14/2023 7:45:34 PM |
US Patent:1,191,813
https://www.datamp.org/patents/displayPatent.php?number=1191813&typeCode=0 |
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1921 Mummert-Dixon Co., Facing Heads
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