No assignment of, or order for, wages to be earned in the future shall be valid against a creditor of the person making it until it has been accepted in writing and a copy of it and of the acceptance has been filed with the clerk of the town or city where the party making it resides.
RSA 506:3
1873, 9:1. 1878, 2:1. GL 249:48. PS 215:4. PL 327 :3. RL 383:3.