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US Patent: 59,721
Gage for Determining Angles
Machinists' Combination Tool
Patentee:
E. C.C. Kellogg (exact or similar names) - Hartford, CT

USPTO Classifications:
33/429, 33/557

Tool Categories:
layout tools : measurement gauges
layout tools : squares
layout tools : compasses

Assignees:
E. C.C. Kellogg - Hartford, CT
S. F. Bennett - Little Falls, CT
D. H. Burrill - Little Falls, CT

Manufacturer:
Not known to have been produced

Witnesses:
Willis W. Clarke
J. W. Coombs
A. Lattere

Patent Dates:
Granted: Nov. 13, 1866

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Ralph Brendler
Description:
This pair of machinist calipers features scales for direct reading of circumference and diameter of rods, as well as angle gages for 30, 60, and 90 degrees, as well as a screw gage and even compass points.

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