<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31321091</termId><termName>gage blocks</termName><termType>PT</termType><termNote><![CDATA[ Hardened steel blocks having two flat, parallel surfaces with the parallel distance between the surfaces marked to a guaranteed accuracy of a few millionths of an inch; used in manufacturing processes as a precise measuring standard. ]]></termNote><termCreatedDate>2026-03-30 20:26:34</termCreatedDate><relation><relationType>UF</relationType><termId>31321092</termId><termName>blocks, gage</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321093</termId><termName>blocks, gauge</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321094</termId><termName>blocks, precision</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321095</termId><termName>blocks, size</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321096</termId><termName>gage block</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321097</termId><termName>gauge blocks</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321098</termId><termName>precision blocks</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31321099</termId><termName>size blocks</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31358242</termId><termName>size measuring devices</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31306336</termId><termName>blocks</termName><termType>PT</termType></relation></term>  </Zthes>