US Patent: 1,292,235
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Work-support
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Patentee:
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John R. Beckett (exact or similar names) - Somerville, MA |
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Patent Dates:
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Applied: |
Jan. 13, 1917 |
Granted: |
Jan. 21, 1919 |
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Jeff Joslin
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Description: |
In 1928 the assignee sold the rights to this invention, the "Boston universal angle plate", to the United States Automatic Box Machinery Co., which continued its manufacture for about four years. |
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