<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31441173</termId><termName>breechblocks</termName><termType>PT</termType><termNote><![CDATA[ Movable metal blocks fitting into the breeches of firearms, serving to close and seal the breech opening of the barrel during firing. ]]></termNote><termCreatedDate>2026-03-30 20:58:55</termCreatedDate><relation><relationType>UF</relationType><termId>31441174</termId><termName>breech-blocks</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31441175</termId><termName>breechblock</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31415483</termId><termName>breech mechanism components</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31459508</termId><termName>bolts</termName><termType>PT</termType></relation></term>  </Zthes>