US PATENT SUBCLASS 248 / 224.61
.~.~.~.~ Interior sidewalls of groove stepped or tapered (i.e., laterally)

Current as of: June, 1999
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248 /   HD   SUPPORTS

200  DF  BRACKETS {11}
205.1  DF  .~ Specially mounted or attached {22}
220.21  DF  .~.~ Interlocked bracket and support {15}
223.41  DF  .~.~.~ One interengaging portion includes groove {2}
224.61.~.~.~.~ Interior sidewalls of groove stepped or tapered (i.e., laterally)

DEFINITION

Classification: 248/224.61

Interior sidewalls of groove stepped or tapered (i.e., laterally):

(under subclass 223.41) Grooved interengaging portion wherein the channel or tongue is progressively narrow to one end and is either multiplanar or planar toward a backwall of the channel.