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US Patent: 1,533,369
Thread Gauge Construction
Patentee:
Bryant H. Blood (exact or similar names) - Hartford, Hartford County, CT

USPTO Classifications:
33/501.05, 411/411

Tool Categories:
metalworking tools : machinist tools : measuring tools : thread gages

Assignees:
Pratt & Whitney Co. - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 03, 1921
Granted: Apr. 14, 1925

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Pratt, Whitney & Co.

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