US Patent: 898,997 - Nut Wrench


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US Patent: 898,997

Nut Wrench

Patentee:

George P. Sprague (exact or similar names) - Arlington, Middlesex County, MA

USPTO Classifications:

81/121.1

Tool Categories:

wrenches : nut wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Charles R. Brown

Marion E. Brown

Albert W. Brown

Patent Dates:
Applied:	Sep. 11, 1907
Granted:	Sep. 15, 1908

Patent Pictures:

George P. Sprague patent September 15, 1908

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Description:

"T" handle with a swivel; the head has a dovetail slot to allow for interchange of different sizes of sockets. Compare Sprague's parallel ratchet wrench patent no. 898,996.