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US Patent: 468,519
Micrometer Gage
Patentee:
Robert B. Haines, Jr. - Coatesville, PA

USPTO Classifications:
33/704, 33/813

Tool Categories:
metalworking tools : machinist tools : measuring tools : micrometers

Assignees:
None

Manufacturer:
Haines Gauge Co. - Philadelphia, PA

Witnesses:
Henry Howson
Eugene Elterich

Patent Dates:
Applied: Oct. 27, 1891
Granted: Feb. 09, 1892

Patent Pictures: [ 1 | 2 ]
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Description:
The object of my invention is to so construct a micrometer-gage that material for instance, hot plates in a rolling-mill can be measured without the measurer coming close to the plates.

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