<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31419112</termId><termName>optical instrument cases</termName><termType>PT</termType><termCreatedDate>2026-03-30 20:52:50</termCreatedDate><relation><relationType>UF</relationType><termId>31484615</termId><termName>case, optical instrument</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31419113</termId><termName>optical instrument case</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31383811</termId><termName>temporary alphabetical list: optical instruments</termName><termType>PT</termType></relation></term>  </Zthes>