<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31472453</termId><termName>Burr arch trusses</termName><termType>PT</termType><termNote><![CDATA[ Trusses, patented in the early 19th century by Theodore Burr, combining a wood arch with a series of metal king-post trusses. ]]></termNote><termCreatedDate>2026-03-30 21:07:09</termCreatedDate><relation><relationType>UF</relationType><termId>31472454</termId><termName>Burr arch truss</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31472455</termId><termName>trusses, Burr arch</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31458648</termId><termName>trusses by form</termName><termType>PT</termType></relation></term>  </Zthes>