photocopier
['slide rule, slipstick', 'electric fan, blower', 'loudspeaker, speaker, speaker unit, loudspeaker system, speaker system', 'bookshop, bookstore, bookstall', 'cellular telephone, cellular phone, cellphone, cell, mobile phone', 'hand blower, blow dryer, blow drier, hair dryer, hair drier', 'reflex camera']