| 摘要 |
329,233. B�rk, C., (trading as B�rk, C., [Firm of]). Nov. 23, 1928, [Convention date]. Projectors and projectiles. - In a. compressed air pistol, actuated by a plunger 2 and trigger 3, the barrel or compressed air cylinder 1, has a narrow opening 4 having a sharp edge which is forced through discs of potato, turnip or similar material to load the muzzle, the ejection of the missile by compressed air being accompanied by a detonation. |
