| Identifier | Title | Date | Event type | Other information | |
|---|---|---|---|---|---|
| KBA 9356.645 | 4th May 1956 | Creation | digitized | prolonged period of protection | ||
| KBA 9363.401 | 9th May 1963 | Creation | digitized | prolonged period of protection | ||
| KBA 9367.40 | 23rd Jan 1967 | Creation | digitized | prolonged period of protection | ||
| KBA 9367.54 | 30th Jan 1967 | Creation | digitized | prolonged period of protection |