<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31307730</termId><termName>sound reproducers</termName><termType>PT</termType><termNote><![CDATA[ Devices for creating optical sound tracks photographically on film using light and a gate that responds to amplification. ]]></termNote><termCreatedDate>2026-03-30 20:22:48</termCreatedDate><relation><relationType>UF</relationType><termId>31307731</termId><termName>reproducers, sound</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31307732</termId><termName>sound reproducer</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31299038</termId><termName>sound devices</termName><termType>PT</termType></relation></term>  </Zthes>