US PATENT SUBCLASS 217 / 94
Current as of: June, 1999
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(under subclass 91) Devices forming a permanent part of the hoop itself for tightening the same.
SEE OR SEARCH CLASS
24, Buckles, Buttons, Clasps, etc.,
19, for analogous structure.
93.2+, for apparatus for tensioning an article encircling band and securing spaced portions, the apparatus being supported manually or on the work.
301, Land Vehicles: Wheels and Axles,
86+, for analogous structure.