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US Patent: 983,562
Pipe Flange Wrench
Patentee:
Michael Murray (exact or similar names) - Chicago, IL

USPTO Classifications:
81/176.2, 81/63

Tool Categories:
wrenches : ratchet wrenches
wrenches : pipe wrenches
wrenches : flange wrenches

Assignees:
None

Manufacturer:
Nye Tool & Machine Works - Chicago, IL

Witnesses:
B. G. Richards
M. L. Lessin
Joshua R. H. Potts
Helen F. Lillis
Patent Dates:
Applied: May 11, 1910
Granted: Feb. 07, 1911

Patent Pictures: [ 1 | 2 ]
Michael Murray patent February 7, 1911
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Description:
Reversible ratchet mechanism turns a broad plate with slots and holes to bolt to the face of a threaded flange for connecting pipe segments.

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