Abstract: When a customer buys a product at a store or by way of storeless sales system 5 (web server), that product is automatically registered with data management system 4 as an item owned by the customer. Storeless sales system 5, either at regular intervals or on demand, updates resale prices for items owned by the customer within data management system 4 to most-recent values therefor, and displays these on a customer website which can be accessed by customer terminal 7. When a customer at customer terminal 7 views, from that customer website, a catalog page for a product he wishes to purchase, storeless sales system 5 furthermore displays that catalog such that a difference in price between the selling price of the product the customer wishes to purchase and the resale price of an item owned by that customer are calculated thereon.

Abstract: A laser system which realizes its stable operation. In the system, a spectrum width of laser light dischargingly excited in a laser chamber is detected by a spectrum width monitor. A controller controls, on the basis of the detected spectrum width, a replenishment amount of gas to be replenished from an F2 gas cylinder into the laser chamber through a sub-tank and on-off valves to cause the spectrum width to become constant.Further, when replenishment of a halogen gas diluted with a buffer gas is carried out, a gas exhaustion step of keeping the internal total gas pressure of the laser chamber constant is omitted.In addition, a laser oscillation pulse number is counted for a predetermined period of time and a replenishment amount of the halogen gas is carried out according to the count value.

Abstract: An apparatus for automatically mounting an electronic circuit element on a printed circuit board which is capable of dealing with an electronic circuit element having two lead wires of the large interval, that having two lead wires of the small interval, and that having three lead wires. The apparatus includes a mechanism for holding and transferring an electronic circuit element to a printed circuit board which comprises a fixed pawl formed with a central recess and a pair of side steps, and a pair of movable pawls openable with respect to the fixed pawl wherein the movable pawls are adapted to be in cooperation with the fixed pawl to securely interpose lead wires of an electronic circuit element positioned in the central recess and one of the side steps between one of the movable pawls and the fixed pawl.