COMPUTER REMOVABLE ON AN EFFECIENCY MANUAL, EFFECIENCY MANUAL AND SELLING METHOD THEREOF

摘要

A minitype computer removable on an efficiency manual, an efficiency manual including the computer therein, and a selling method thereof. The computer has a loose-leaf ring fitting device which is composed of loose-leaf ring fitting pads, etc. The loose-leaf ring fitting device has through holes for fitting the computer which has the same size with the replacement paper of the efficient manual on the loose-leaf rings of the efficient manual.