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US Patent: 287,913
Billiard-Table Leveler
Improvements In A Device For Billiard-Table Legs
Patentees:
William M. Dawson - Belvidere, IL
Robert A. Simpson - Belvidere, IL
Leonard S. Longcor - Belvidere, IL

USPTO Classifications:
16/32, 248/188.4

Tool Categories:
wrenches : auxiliary wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. L Ourand
R. Wallis
J. E. Forrest
Wales W. Wood

Patent Dates:
Applied: Jul. 16, 1883
Granted: Nov. 06, 1883

Patent Pictures:
W. A. Dawson, R. A. Simpson, and Leonard S. Longcor patent November 6, 1883
USPTO pdf tiff
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Description:
The leveler is a screw; one version has left- and right-hand threads. Alternative forms of contact surface to turn the screw are described. One form is a collar with holes, and a corresponding hook spanner wrench . The patent is for the combination of the upper and lower sockets, with the adjustable connection.

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