GB Patent: GB-137,182
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Improvements relating to wood mortising machines Turret-head hollow-chisel and chain-cutter mortiser
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Patentee:
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William Blackett Haigh (exact or similar names) - Manchester, England |
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Patent Dates:
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Applied: |
Mar. 15, 1919 |
Granted: |
Jan. 08, 1920 |
Espacenet patent
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Jeff Joslin Vintage Machinery entry for Oliver Machinery Co. (UK)
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Description: |
The William Blackett Haigh who founded W. B. Haigh & Co. lived 1820-1883. The inventor of this patent was perhaps a grandson.This invention is a means of converting a hand-operated chain mortiser to a power mortiser. |
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