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US Patent: 706,242
Measuring Rule
Graduations for Rulers
Patentee:
Daniel Latshaw (exact or similar names) - Philadelphia, PA

USPTO Classifications:
33/494

Tool Categories:
rules : rule graduations

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. A. Cannon
Allen B. Clement
Robt. D.W. Harvey

Patent Dates:
Applied: Jan. 25, 1902
Granted: Aug. 05, 1902

Patent Pictures:
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Report data errors or omissions to steward Ralph Brendler
Description:
This patent covers a special kind of graduation to be used for rules. The length of the 1/4, 1/2, and 3/4 ticks are proportional to their measurement, supposedly facilitating the rapid reading of the scale.

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