Section sign ... It is also called "double S", "sectional symbol", "the legal doughnut ", signum ... It is frequently used along with the pilcrow (¶), or paragraph sign.
If after reading all of the answers provided and you still cannot type the symbol, just simply type the word section or sec. since that is all the symbol ...
21 Sep 2006 ... (KudoZ) English to Spanish translation of meaning of the symbol §: section of a law or code [Law (general) (Law/Patents)].