首页>
外国专利>
An Improved Apparatus for Teaching Rifle Practice.
An Improved Apparatus for Teaching Rifle Practice.
展开▼
机译:一种改进的步枪练习教学仪器。
展开▼
页面导航
摘要
著录项
相似文献
摘要
11,402. Lesselt, P. May 11. Teaching rifle practice.-Consists in apparatus for teaching the principles of sighting. The apparatus comprises a target and a dummy rifle adjustably mounted on a stand and carrying three rods a, b, c representing the trajectory, the axial line of the barrel, and the sighting- line respectively.
展开▼