Wherever the statutes require court records, deeds, patents, plats, charters of corporations, certificates of decrease of capital stock or other instruments, papers, or documents, to be recorded by any city, county or state officer, the making of photographic copies of such instruments, papers or documents, or the making of microphotographed copies shall be deemed recording. Photographic copies may be bound, paged and indexed wherever it is so provided for instruments, papers, or documents, recorded by hand, and such photographic copies when bound together shall be deemed record books. Microphotographed copies shall be placed in conveniently accessible files with provisions made for their preservation, examination and ready use by those persons lawfully entitled to view them and when such conditions are met they shall be deemed record books. This act shall be supplemental to existing statutes.