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US Patent: 1,430,990
Calipers
Patentee:
Henry Hendrickson (exact or similar names) - Telluride, CO

USPTO Classifications:
33/558.2

Tool Categories:
layout tools : calipers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Jacob Wirsula
G. A.K. Partanan

Patent Dates:
Applied: Apr. 20, 1920
Granted: Oct. 03, 1922

Patent Pictures:
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Report data errors or omissions to steward Ralph Brendler
Description:
This is a design for calipers capable of taking and holding three separate measurements at once.

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