<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31458022</termId><termName>invisible hinges</termName><termType>PT</termType><termNote><![CDATA[ Door hinges which are completely concealed when the door is either open or closed. Distinguished from "concealed hinges" which are invisible only when the door is closed. ]]></termNote><termCreatedDate>2026-03-30 21:03:17</termCreatedDate><relation><relationType>UF</relationType><termId>31458023</termId><termName>hinges, invisible</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31458024</termId><termName>hinges, secret</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31458025</termId><termName>invisible hinge</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31458026</termId><termName>secret hinges</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31439303</termId><termName>hinges by visibility</termName><termType>PT</termType></relation></term>  </Zthes>