US PATENT SUBCLASS 220 / 831
.~.~ Including abutment or retaining means to hold closure in open position
Current as of:
June, 1999
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220 /
HD
RECEPTACLES
200
DF
CLOSURES
{45}
810
DD
.~ Pivotable, (e.g., hinged) {13}
831
.~.~ Including abutment or retaining means to hold closure in open position {1}
832
DD
.~.~.~
> Closure fixedly retained in open position
