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US Patent: 1,144,569
Scratch Gage
Patentee:
Emory J. Sylvester - Buffalo, NY

USPTO Classifications:
33/42

Tool Categories:
layout tools : marking gauges

Assignees:
None

Manufacturer:
Unknown

Witnesses:
Thomas William Keddey
Leon. Boisvert
J. R. Tomlin
E. B. Goswell

Patent Dates:
Applied: May 11, 1914
Granted: Jun. 29, 1915

Patent Pictures: [ 1 | 2 ]
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Description:
Here is a refreshingly simple design for a machinist's scratch gage with a micro-adjustable head. The head is locked on the bar using a set screw bearing on a split collar, at which point the head can be turned to fine-tune the adjustment. Stamped on the head of the gage is: E. J. Sylvester, Buffalo, N.Y. Pat June 29, 1915.

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