File:Ref3-US4115914.pdf
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Reference 3 in the summary document: US Patent 4,115,914
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 22:24, 12 October 2011 | (769 KB) | Bberg (talk | contribs) | Reference 3 in the summary document: US Patent 4,115,914 |
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