In NY I bought a hedge trimmer, chain saw, repair to my mower, parts for the repairs and maintenance on equipment that I did myself.
I provided my state with a list of purchases made for my business that were not items for resale as listed above. Along with photo copies of the receipts.
NYS will refund the sales tax you paid or give you a credit against the sales tax you required to pay.
I just cashed a refund check for $128.
So the best thing to do is contact your states sales tax board.