US PATENT SUBCLASS 292 / *
.~.~ Spring projected
Current as of:
June, 1999
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292 /
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CLOSURE FASTENERS
2
DF
BOLTS
{15}
240
DF
.~ Swinging and camming {2}
*
.~.~ Spring projected {1}
242
DF
.~.~.~
> Rigid operating means