<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31447098</termId><termName>acetylene lamps</termName><termType>PT</termType><termNote><![CDATA[ Lamps equipped with containers for calcium carbide, a reservoir of water with a controlled drip, and a nozzle or burner for the combustion of the acetylene gas produced by bringing the water into contact with the calcium carbide; also lamps with acetylene burners connected to a central source of acetylene. ]]></termNote><termCreatedDate>2026-03-30 21:04:51</termCreatedDate><relation><relationType>UF</relationType><termId>31447099</termId><termName>acetylene lamp</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31447100</termId><termName>cap lamps</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31447101</termId><termName>lamps, acetylene</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31424518</termId><termName>lamps by method of illumination</termName><termType>PT</termType></relation></term>  </Zthes>