US Patent: 206,534
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Improvement in the manufacture of compound lumber
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Patentee:
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William E. Brock (exact or similar names) - New York, NY |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
May 31, 1878 |
Granted: |
Jul. 30, 1878 |
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Jeff Joslin
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Description: |
This machine forms tongues and grooves by compressing rather than cutting the wood. See also patent 183,042. |
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