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(Created page with "We have the following patent drawing, courtesy of Doug Valitchka. If you any additional information, please add it here, or send it to sethile.pipes@gmail.com and we can add i...") |
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We have the following patent drawing, courtesy of Doug Valitchka | {{Need Information}} | ||
We have the following patent drawing, courtesy of Doug Valitchka. | |||
[[File:Atwood.jpg|800px]] | [[File:Atwood.jpg|800px]] | ||