发明名称 EXTENSION DEVICE FOR SHOTGUN
摘要 The present invention relates to a shotgun accessory which can be attached to and detached from the barrel of a shotgun. A shotgun accessory formed in accordance with the invention is an accessory barrel (6), the structure of which is such that it brings about the optimal combustion of the gun powder in the shotgun's barrel and accessory barrel (6).
申请公布号 WO0001998(A1) 申请公布日期 2000.01.13
申请号 WO1999FI00594 申请日期 1999.07.05
申请人 TOIVANEN, JUKKA 发明人 TOIVANEN, JUKKA
分类号 F41A21/32;(IPC1-7):F41A21/40 主分类号 F41A21/32
代理机构 代理人
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