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US Patent: 535,287
Measuring and regulating device for adjustable school furniture
Patentee:
Frederick W. Hill (exact or similar names) - Boston, MA

USPTO Classifications:
33/833

Tool Categories:

Assignees:
Chandler Adjustable Chair and Desk Co - Boston, MA

Manufacturer:
Unknown

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 29, 1894
Granted: Mar. 05, 1895

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
One of these appeared in a Martin J. Donnelly auction

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