US Patent: 1,421,014
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| Attachment for broaching machines
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Patentee:
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| Francis J. Lapointe (exact or similar names) - Ann Arbor, MI |
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Patent Dates:
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| Applied: |
Feb. 02, 1921 |
| Granted: |
Jun. 27, 1922 |
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Jeff Joslin
Vintage Machinery entry for American Broach & Machine Co.
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Description: |
| "This invention relates to broaching machines and has for its object the provision of a machine of this character particularly adapted to form aligned holes in bifurcated members such for instance as the two parts of a universal joint." |
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