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US Patent: 2,460,726
Surface Roughness Measuring Device
Patentee:
John P. Arndt, Jr. (exact or similar names) - Euclid, OH

USPTO Classifications:
73/105

Tool Categories:
layout tools : measurement gauges

Assignees:
Brush Development Co. - Cleveland, OH

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: Jan. 11, 1943
Granted: Feb. 01, 1949

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Description:
Eber J. Hyde - patent attorney

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