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US Patent: 107,671
Improvement in blind-slat tenoning-machines
Patentee:
Frank Douglas (exact or similar names) - Norwich, CT

USPTO Classifications:
144/200, 144/222, 144/5, 408/25

Tool Categories:
woodworking machines : joint making machines : tenoning machines
woodworking machines : specialty woodworking machines : windowblind machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Albert L. Bolles
C. H. Douglas

Patent Dates:
Granted: Sep. 27, 1870

Patent Pictures:
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