Find (and delete) duplicated surfaces

Hi! I have a list of 10 surfaces. Some of them are exactly the same. How can I find the duplicates and delete them? I have tried but “uniqueitems” but it does not seem to work on lines and surfaces… Any ideas?

“exactly the same” is not correct I guess. You have several different surfaces with the same area, shape, perimeter etc but they are not the same. see below

I used the area to retrieve the unique element.

2 numbers can be the same, 2 strings can be the same,not surfaces I reckon.

Am I wrong?

Hi @sofmal

Could you drop here relevant rvt and dyn file here. If you want others to give you proper solution.

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