作者: R Haskins
DOI:
关键词: Barrel (horology) 、 Structural engineering 、 Materials science 、 Mechanical engineering 、 Closure (container)
摘要: The invention discloses a protection device including pistol shaped housing having handle grip and hollow barrel open at one end; removable closure cap, an outlet opening, fitted to the for closing its triggering mechanism operable moving repellent fluid container placed in towards cap ejection of through opening cap.