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Patent number:
Patent Date:
US Patent: 2,052,153
Spherometer
Patentee:
Horace H. Willis (
exact
or
similar
names) - Pelham, NY
USPTO Classifications:
33/501
Tool Categories:
layout tools
:
measurement gauges
Assignees:
None
Manufacturer:
Sperry Gyroscope Co., Inc.
- Brooklyn, NY
Witnesses:
none listed
Patent Dates:
Applied:
Dec. 29, 1931
Granted:
Aug. 25, 1936
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
Description:
Herbert H. Thompson - patent attorney
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