Can Dovo Nail Clippers be Sharpened?

[GaryXD]

When my thumb joints gave out I had to buy Dovo nail clippers. It seems like they are getting dull now. Can they be sharpened or do I have to get new ones?

 

[TUF]

I'm not sure which ones you have but just about anything that is sharpened can be re-sharpened.