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US Patent: 2,621,556
Comparator for Testing Turbine Blades and the Like
Patentees:
Robert O. Beardsley (exact or similar names) - Springfield, Windsor County, VT
James A. Allan (exact or similar names) - Springfield, Windsor County, VT

USPTO Classifications:
33/547, 356/392

Tool Categories:
metalworking tools : machinist tools : measuring tools : comparators

Assignees:
Jones & Lamson Machine Co. - Springfield, Windsor County, VT

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 28, 1949
Granted: Dec. 16, 1952

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Jones, Lamson & Co.

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