序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
---|---|---|---|---|---|---|
221 | Improvement in revolving fire-arms | US37551D | US37551A | 1863-01-27 | ||
222 | Improvement in revolving fire-arms | US34703D | US34703A | 1862-03-18 | ||
223 | Improvement in fikvolvers | US30990D | US30990A | 1860-12-18 | ||
224 | Improvement in repeating fire-arms | US14820D | US14820A | 1856-05-06 | ||