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US Patent: 131,648
Improvement in machines for making boxes for elevators
Machine for making escalator treads
Patentee:
William L. Young - Marthasville, MO

USPTO Classifications:
144/10

Tool Categories:
woodworking machines : specialty machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. A. Schabarg
Frederich Worstemeyer

Patent Dates:
Granted: Sep. 24, 1872

Patent Pictures:
USPTO pdf tiff
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