US PATENT SUBCLASS 30 / 268
.~.~.~ Spring tension
Current as of:
June, 1999
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30 /
HD
CUTLERY
165
DF
CUTTING TOOLS
{19}
173
DF
.~ Plural cooperating blades {6}
266
DF
.~.~ Joints and blade-tension means {3}
268
.~.~.~ Spring tension {1}
269
DF
.~.~.~.~
> Threadless pin type
DEFINITION
Classification: 30/268
(under subclass 266) Joints in which the proper pressure is applied to the blades by a spring.