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US Patent: 2,897,704
Predetermined Torque Release, Ratchet Type Wrench
Patentee:
Robert Glen Woods (exact or similar names) - Huntington Park, Los Angeles County, CA

USPTO Classifications:
81/481

Tool Categories:
wrenches : torque wrenches
wrenches : ratchet wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 19, 1957
Granted: Aug. 04, 1959

Patent Pictures:
INDESTRO 8081A - multiple views (courtesy photo)
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Stan Schulz
Description:
DURO / INDESTRO "micrometer calibrated" torque wrenches with markings including this patent 2,743,638 and no. 3,016,773 prompt this entry.

Discussion in the "Garage Journal" online forum concluded New Britain Machine was the actual manufacturer of the wrench shown in the image.

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