hmm.... yes but many parts look like playmobil 
they can't reach playmobil in any way thought as similar if they are 
As I said, even if the concept is the same (plastic figure with joints, which can be equipped with many accessories), this is not sufficient to say that it is a copy, even more if you consider that Czech Republic was nearly closed to foreign goods for the first 10 years of the production.
Cheva is also a Czech brand producing toys really similar to Lego (but twice bigger than the Danish bricks), and they're producing for more than 20 years... but base patent from Lego is now obsolete and can be produced anywhere in the world... under other names (like MegaBlocks for example)
Looking at a patent :
A patent is divided in 4 main parts :
1: References to previous patents and general analysis about current know-how and its flaws <=> Give the status of what is already existing and what can be improved / Gives also analysis of the problem the present patent will solve
2: Claims ! Most important part of the patent ! Here the inventor claims all the improvement his invention will give to mankind or to a really non-obvious issue (like creating moving hands to a best-selling toy with fix hands)
3 : Descriptions : Technical body of the patent : gives info about the general solution to the in-first-part-detailed-issue.
4 : Specific realisations modes : describes some ways of using the invention
In attachment I'll add two Geobra patents (in French and German for the moment), for the Steck system and for the floating animal like Orca
