div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentuse-vortex-tubes-for-fuel-free-thermal-energy-heating-sep-09-2002-createdhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Use Vortex Tubes For Fuel-Free Thermal Energy Heating Sep 09 2002 · Created Date: 992002 12:07:55 PM loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsinreader034viewer20220501145f4b3bcfc0b4de709e6e89bdhtml5thumbnails1jpg width=140 height=200 divdiv