it looks as if there are lots of duplicated values/entries in the class file. for example, look at 07012073 in the class.sqlite3. running the following code shows issues:
select count(*) from (select * from class where prim=1 group by patent having count(*)>1);
- Translates to: how many of the patents have more than 1 primary class listed?
- the answer results to: 139,594 which seems a bit weird!
it looks as if there are lots of duplicated values/entries in the class file. for example, look at 07012073 in the class.sqlite3. running the following code shows issues: