<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31439594</termId><termName>spiral stairs</termName><termType>PT</termType><termNote><![CDATA[ Staircases that are circular in plan, consisting entirely of winders or wedge-shaped steps. ]]></termNote><termCreatedDate>2026-03-30 20:58:29</termCreatedDate><relation><relationType>UF</relationType><termId>31439597</termId><termName>coakels</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439598</termId><termName>cockle stairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439599</termId><termName>cocklestairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439600</termId><termName>cokels</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439601</termId><termName>corkscrew stairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439602</termId><termName>helical stairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439603</termId><termName>screw stairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439604</termId><termName>spiral stair</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439605</termId><termName>spiral staircase</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439606</termId><termName>spiral staircases</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439607</termId><termName>staircases, spiral</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439608</termId><termName>staircases, turnpike</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439609</termId><termName>staircases, winding</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439610</termId><termName>stairs, circular</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439611</termId><termName>stairs, cockle</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439612</termId><termName>stairs, corkscrew</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439613</termId><termName>stairs, helical</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439614</termId><termName>stairs, screw</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439615</termId><termName>stairs, spiral</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439616</termId><termName>stairs, turnpike</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439617</termId><termName>stairs, winding</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439618</termId><termName>turnpike staircases</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439619</termId><termName>turnpike stairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439620</termId><termName>winding staircases</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439621</termId><termName>winding stairs</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439595</termId><termName>caracoles</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31439596</termId><termName>circular stairs</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31414212</termId><termName>stairs by form</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31458203</termId><termName>solid newel stairs</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31458210</termId><termName>double spiral stairs</termName><termType>PT</termType></relation></term>  </Zthes>