US Patent: 403,509
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Lathe-chuck
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Patentee:
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Freeman Higgins (exact or similar names) - Manchester, NH |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Jan. 12, 1889 |
Granted: |
May 21, 1889 |
USPTO (New site tip) Google Patents
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Jeff Joslin
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Description: |
Improvements on patent 216,766 to allow all the jaws to be rapidly opened (or closed) simultaneously. |
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