2613179 | Silver plating | 1952-10-07 | ||
2472393 | Process and bath for copper coating ferrous metal | 1949-06-07 | ||
2391289 | Bright copper plating | 1945-12-18 | ||
2113517 | Electrodeposition of silver | 1938-04-05 | ||
2110792 | Process for electrodeposition of silver and products obtained therefrom | 1938-03-08 | ||
1208507 | N/A | 1916-12-12 |
GB396250A | 1933-08-03 |