This industry comprises establishments primarily engaged in operating amusement (except gambling, billiard, or pool) arcades and parlors. Cross-References. Establishments primarily engaged in-- ? Supplying and servicing coin-operated amusement (except gambling) devices in places of business operated by others or in operating billiard or pool parlors--are classified in Industry 713990, All Other Amusement and Recreation Industries; ? Operating bingo, off-track betting, or slot machine parlors or in supplying and servicing coin-operated gambling devices (e.g., slot machines or video gambling terminals) in places of business operated by others--are classified in Industry 713290, Other Gambling Industries; ? Operating casinos (except casino hotels)--are classified in Industry 713210, Casinos (except Casino Hotels); and ? Operating casino hotels--are classified in Industry 721120, Casino Hotels.