发明名称 Parachute apparatus for model airplane
摘要 A parachute for a powered model airplane in which the parachute is ejected downwardly by an ejection cartridge which may be installed for ejection of the parachute after the parachute is packed into its container in the airplane, and just prior to the take off of the airplane.
申请公布号 US4709884(A) 申请公布日期 1987.12.01
申请号 US19870004027 申请日期 1987.01.16
申请人 GUSTAFSON, TROY C. 发明人 GUSTAFSON, TROY C.
分类号 B64D17/80;(IPC1-7):B64D17/72 主分类号 B64D17/80
代理机构 代理人
主权项
地址