| 11. | Browning had previously sold the rights to his successful locked-breech recoil system.
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| 12. | Kilbourn solved this problem by redesigning the recoil system completely rather than modifying it.
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| 13. | The recoil system consisted of a hydraulic recoil buffer and spring-driven recuperator.
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| 14. | It replaced the obsolete 21 cm M�rser 99, which lacked a recoil system.
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| 15. | These guns are air-cooled and use a gas blow-back recoil system.
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| 16. | Other innovations on the ship design included a collapsible funnel and an improved recoil system.
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| 17. | The carriage included the recoil system, laying arrangements, fuse setting and loading machinery.
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| 18. | The capability to separate in energy in the recoil system arising from small depth intervals.
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| 19. | It lacked a modern recoil system and was virtually obsolescent upon its introduction in 1904.
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| 20. | The recoil system ( buffer and recuperator ) is mounted on the cradle above the barrel.
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