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US Patent: 54,503
Improvement in Combined Square and Bevel
Patentee:
Orril R. Chaplin - Salem, MA

USPTO Classifications:
33/473

Tool Categories:
layout tools : squares : bevel squares

Assignees:
None

Manufacturer:
Standard Tool Company - Athol, MA

Witnesses:
Justin Hinds
Chas. H. Hinds

Patent Dates:
Granted: May 08, 1866

Reissue Information:
Reissued as RE9,183 (May 04, 1880)

Patent Pictures: [ 1 | 2 | 3 | 4 ]
USPTO pdf tiff
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Description:
Sliding square with a movable bevel and protractor scale. Patent is for the combination of the moveable main rule and the bevel head with a moveable or hinged beam. Production item does not seem to incorporate the hinged secondary beam.

Known example marked: O.R. CHAPIN'S PATENT/PAT'D MAY 08 66

Known example (pic 4) marked Standard Tool Company

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