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US Patent: 2,808,651
Caliper for a Lens or the Like
Patentee:
Charles W. Johnson (exact or similar names) - Rehoboth, MA

USPTO Classifications:
33/507

Tool Categories:
layout tools : calipers

Assignees:
Sadler Bros., Inc. - Unknown, MA

Manufacturer:
Not known to have been produced

Witnesses:
none listed
Patent Dates:
Applied: May 26, 1956
Granted: Oct. 08, 1957

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