Image:Patent 3,475,042lowRes.jpg

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Samuel F. Speers, Oct 28 1969

http://patimg1.uspto.gov/.DImg?Docid=US003475042&PageNum=1&IDKey=475A4D4D1A88&ImgFormat=tif


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current01:03, 24 January 2007778×1,312 (282 KB)Hholland (Talk | contribs) (Samuel F. Speers, Oct 28 1969 http://patimg1.uspto.gov/.piw?docid=US003475042&SectionNum=2&IDKey=475A53531A88&HomeUrl=http://patft.uspto.gov/netacgi/nph-Parser?Sect2=PTO1%2526Sect2=HITOFF%2526p=1%2526u=%25252Fnetahtml%25252FPTO%25252Fsearch-bool.html%252)

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