<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31450336</termId><termName>regulators</termName><termType>PT</termType><termNote><![CDATA[ Clocks of great accuracy containing a deadbeat escapement and temperature-compensated pendulum used for the regulation of other timepieces; usually tall case clocks in form. These were initially used in observatories and clock and watch shops as the standard of accuracy during repairs, synchronization, and manufacturing. ]]></termNote><termCreatedDate>2026-03-30 21:01:16</termCreatedDate><relation><relationType>UF</relationType><termId>31450337</termId><termName>governor</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31450338</termId><termName>regulator</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31482819</termId><termName>regulator clock</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31482820</termId><termName>regulator clocks</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31450339</termId><termName>régulateur clocks</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31450340</termId><termName>régulateurs</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31427915</termId><termName>clocks by function</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31297802</termId><termName>standards</termName><termType>PT</termType></relation></term>  </Zthes>