US PATENT SUBCLASS 217 / 89
.~.~ Fasteners
Current as of: June, 1999
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DEFINITION
Classification: 217/89
(under subclass 76) Devices for securing a chamfered head in the croze, usually of spring metal.
SEE OR SEARCH CLASS
292, Closure Fasteners,
137, and 194 for other devices for fastening barrel-closures in place.