97-33. Prorating in event of earlier disability or injury.
If any employee is an epileptic, or has a permanent disability or has sustained a permanent injury in service in the United States Army or Navy, or in another employment other than that in which he received a subsequent permanent injury by accident, such as specified in G.S. 97-31, he shall be entitled to compensation only for the degree of disability which would have resulted from the later accident if the earlier disability or injury had not existed.