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Patent No. 2,283,863. "Rocket Engine"; granted to Ernest Acterman, of Westfield, N. J.
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 22:43, 1 April 2020 | (786 KB) | RobertG (Talk | contribs) | (Patent No. 2,283,863. "Rocket Engine"; granted to Ernest Acterman, of Westfield, N. J. ) |
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