<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31388394</termId><termName>parallel rulers</termName><termType>PT</termType><termNote><![CDATA[ Describes a pair of rulers connected by two pivoting cross pieces of equal length set so that the rulers always remain parallel to each other; used as navigational tools for transferring parallel lines. For drafting tools used to draw parallel lines and affixed to and guided along drafting boards, use "parallel rules." ]]></termNote><termCreatedDate>2026-03-30 20:44:43</termCreatedDate><relation><relationType>UF</relationType><termId>31388395</termId><termName>parallel ruler</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31388396</termId><termName>parallel rules</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31388397</termId><termName>ruler, parallel</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31388398</termId><termName>rulers, parallel</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31353683</termId><termName>rulers</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31445352</termId><termName>parallel rules</termName><termType>PT</termType></relation></term>  </Zthes>