File:PATENT1 US4,949,142 1984.pdf
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PATENT1_US4,949,142_1984.pdf (file size: 750 KB, MIME type: application/pdf)
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Patent in reference
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 16:46, 19 May 2020 | (750 KB) | Danilopau (talk | contribs) | Patent in reference |
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