US Patent: 2,392,823
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| Broach
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Patentee:
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| Francis J. Lapointe (exact or similar names) - Ann Arbor, Washtenaw County, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 10, 1944 |
| Granted: |
Jan. 15, 1946 |
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Joel Havens
"Vintage Machinery" entry for American Broach & Machine Co.
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Description: |
| Claim:
This invention relates to the art of broaching, and it is particularly concerned with a broach comprising a body with multiple cutters mounted thereon. |
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