<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31457789</termId><termName>helmet covers</termName><termType>PT</termType><termNote><![CDATA[ Covers, usually of textile material, in a variety of forms, for use on military helmets. ]]></termNote><termCreatedDate>2026-03-30 20:42:23</termCreatedDate><relation><relationType>UF</relationType><termId>31457790</termId><termName>helmet cover</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31349385</termId><termName>helmet components</termName><termType>PT</termType></relation></term>  </Zthes>