Deleting duplicates within a column?

[RMN]

If I have, for example:

4,2,,3,2,,,,,,9,9
6,44,,,,,,9,12,6
ee,3,22,22,22,22

and I want to delete the duplicate numbers and commas so that it look
like:

4,2,3,9
6,44,9,12
ee,3,22


Is there a way to do this and apply it to an entire column? There ar
nearly 10,000 rows in this column and they are all different, so it wil
be very time-consuming to do it by hand.

Thanks a lot! :