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Patent No. 1,983,405. “Method of Producing Motive Forces an Aircraft, by the Explosion of Inflammable Mixtures of Substances"; granted to Paul Schmidt, of Munich, Germany.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 22:43, 1 April 2020 | (708 KB) | RobertG (Talk | contribs) | (Patent No. 1,983,405. “Method of Producing Motive Forces an Aircraft, by the Explosion of Inflammable Mixtures of Substances"; granted to Paul Schmidt, of Munich, Germany.) |
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