<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31450312</termId><termName>mechanical clocks</termName><termType>PT</termType><termNote><![CDATA[ Clocks whose recurring motion depends on mechanical, as opposed to electronic, devices, such as escapements, the swing of a pendulum, or the oscillation of a balance wheel and spring. ]]></termNote><termCreatedDate>2026-03-30 21:01:16</termCreatedDate><relation><relationType>UF</relationType><termId>31450313</termId><termName>clocks, mechanical</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31450314</termId><termName>mechanical clock</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31427914</termId><termName>clocks by movement</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31465791</termId><termName>weight-driven clocks</termName><termType>PT</termType></relation></term>  </Zthes>