Atoma
Atoma makes disc-bound notebooks whose pages can be moved, taken out and put back at will. Recognisable by its fan-of-pages emblem, the system is produced in Belgium by Papeteries Mottart.
History
The Atoma notebook has been around since 1948, and its name has become a common French word for this kind of notebook. It lies flat when open, and the format lets you add a pocket, a punched document or sheets swapped with another notebook.
About four fifths of production stays in Belgium. The company tells genuine notebooks from copies by small details, such as the number of rings on an A4 cover.