When the provisions of this Chapter have been complied with, all conveyances, deeds, contracts to convey or leases shall be considered duly registered, as against creditors and purchasers, in the same manner and as fully as if the same had been registered in the manner heretofore provided by law for the registration of conveyances. (1913, c. 90, s. 32; C.S., s. 2399.)