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US Patent: 483,846
Speed Measure
Patentee:
Oscar Knapp (exact or similar names) - Brooklyn, Kings County, NY

USPTO Classifications:
235/103

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: May 20, 1892
Granted: Oct. 04, 1892

Patent Pictures:
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