File:US Patent 3283435 8-Nov-1966 BREECH CLOSURE Theodor Koch.png
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Summary
Delayed blowback roller lock for automatic weapon.
License
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | ||
|---|---|---|---|---|---|---|
| current | 10:18, 19 April 2013 | | 1,973 × 2,916 (305 KB) | Maintenance script (Talk) | Automated mass import from old server |
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