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GB Patent: GB-187,803,994
Wrenches
Patentee:
John W. Hyatt (exact or similar names) - Newark, NJ

USPTO Classifications:

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Granted: Oct. 09, 1878

Patent Pictures:
J. W. Hyatt Registered Oct 9, 1878 - from *Abridgments of Specifications*
Espacenet patent
Report data errors or omissions to steward Stan Schulz
Description:
Combination quick and screw-adjust nut wrench corresponding to U.S. patent 209,569. G. C. Hopper was a British patent agent.

Note: Early British patents (pre 1916) were numbered by the year and started at patent #1 at the start of each year in January. The patent # used in DATAMP represents the year of registration and the patent # (with "leading zeros" interposed to make the number total nine digits). This patent is #3994 of the year 1878.

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