US PATENT SUBCLASS 238 / 208
.~.~.~ Two-side filler
Current as of: June, 1999
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DEFINITION
Classification: 238/208
(under subclass 207) except that filler inserts or wedges are used on both sides of the rail and inside the channel-shaped joint member.
SEE OR SEARCH THIS CLASS, SUBCLASS:
161, and 170.