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Publication of BE556258ApublicationCriticalpatent/BE556258A/fr
F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
Dispositif pour permettre le tir d'un projectile sans éjection de gaz vers l'arrière, ni recul, au moyen d'un tube de lancement ouvert à ses deux extrémités