<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31421732</termId><termName>plumber&apos;s caulking irons</termName><termType>PT</termType><termNote><![CDATA[ Chisel-like tools designed for use in plumbing, typically having a blunt end and curved blades, pushed ans struck with a hammer to force lead and oakum in the collars of pipes to make them watertight. ]]></termNote><termCreatedDate>2026-03-30 20:53:40</termCreatedDate><relation><relationType>UF</relationType><termId>31421733</termId><termName>caulking irons, plumber&apos;s</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31421734</termId><termName>plumber&apos;s caulking iron</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31388506</termId><termName>metal-joining and -holding tools</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31306815</termId><termName>plumbing systems</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31338185</termId><termName>plumbers</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31482043</termId><termName>plumbers</termName><termType>PT</termType></relation></term>  </Zthes>