序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
---|---|---|---|---|---|---|
41 | Marine carriage | US50985843 | 1943-11-11 | US2371461A | 1945-03-13 | NEWELL FOSTER S |
42 | Device for hauling up ships, etc. | US71493434 | 1934-03-10 | US1994696A | 1935-03-19 | FRIEDRICH DUWE |
43 | Marine railway | US52145031 | 1931-03-10 | US1860177A | 1932-05-24 | DRAVO FRANCIS R; EDWARDS VERE B |
44 | Boat-transporting apparatus | US1685325 | 1925-03-19 | US1585193A | 1926-05-18 | RICHARD HAALCK JOHANN JURGEN |