<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31355289</termId><termName>sirens</termName><termType>PT</termType><termNote><![CDATA[ Devices for producing sounds, consisting essentially of a disk pierced with holes arranged in a circle, rotated over a stream of compressed air, steam, or fluid, so that the stream is alternately interrupted and allowed to pass; their uses include giving signals or warnings and producing musical tones. ]]></termNote><termCreatedDate>2026-03-30 20:35:47</termCreatedDate><relation><relationType>UF</relationType><termId>31355290</termId><termName>siren</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31325027</termId><termName>sound signaling devices</termName><termType>PT</termType></relation></term>  </Zthes>