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US Patent: 439,511
Metal Folding Rule
Patentee:
William Hohnstein - St. Louis, MO

USPTO Classifications:
33/458

Tool Categories:
rules : folding rules : folding rule joints

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Benjamin A. Knight
Samuel Knight
E. Arthur
Henry S. Knight

Patent Dates:
Applied: Feb. 21, 1890
Granted: Oct. 28, 1890

Patent Pictures:
USPTO pdf tiff
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