2324744 | Life belt inflating mechanism | 1943-07-20 | ||
2320111 | Life preserver and distress signal | 1943-05-25 | ||
2209956 | Dispensing apparatus | 1940-08-06 | ||
2173567 | Safety swimming appliance | 1939-09-19 | ||
2036695 | Release device for inflatable flotation devices | 1936-04-07 | ||
1707182 | Life-saving device | 1929-03-26 | ||
1670591 | Life-preserving device | 1928-05-22 |
IT284379B |