div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentcertificate-of-patent-83-1-7-5-5-patent-83-1-7-5-5-patent-numberhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: CERTIFICATE OF PATENT 83 1 7 5 5 PATENT 83 1 7 5 5 PATENT NUMBER OF THE INVENTION PATENTEE APPLICATION NUMBER H FILING DATE 1 3 1 2 2 5 December 252001 THIS loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader036fdocumentsinreader036viewer20220714106104f55b77d46975394237cchtml5thumbnails1jpg width=140 height=200 divdiv