| № |
Element
|
Documents count |
|---|---|---|
| 1921 | BKD (>>>) | 1 |
| 1922 | black and white coloring (>>>) | 1 |
| 1923 | black culture of agriculture (>>>) | 1 |
| 1924 | black currant (>>>) | 1 |
| 1925 | black earth (>>>) | 1 |
| 1926 | black mtdic (>>>) | 1 |
| 1927 | black mustard (>>>) | 1 |
| 1928 | black rot (>>>) | 3 |
| 1929 | black soil (>>>) | 1 |
| 1930 | Black Soldiers (>>>) | 1 |
| 1931 | black walnut (>>>) | 1 |
| 1932 | Black-and-White breed (>>>) | 2 |
| 1933 | black-and-white cattle (>>>) | 1 |
| 1934 | blackberries (>>>) | 1 |
| 1935 | blackberry (>>>) | 2 |
| 1936 | black-headed gull (>>>) | 1 |
| 1937 | blackleg of potato (>>>) | 3 |
| 1938 | Black-Motley (>>>) | 1 |
| 1939 | black-motley cattle (>>>) | 1 |
| 1940 | blade (>>>) | 2 |