Abstract: A business card dispenser comprising a main casing and a sliding tray installed in the main casing in a slidable fashion with a business card(s) placed thereon. The sliding tray is pushed by hand in one direction, thus bending the business card(s) to form an arc so that one business card can be removed, and then the sliding tray is moved back in another (opposite) direction to its original position by an elastic force which is produced by the straightening business card, thus dispensing one card at a time quickly.

Abstract: A file having a polypropyrene base sheet and a fastener assembly that includes a polypropyrene base member thermally bonded to the polypropyrene base sheet. A relatively thin polypropyrene sheet, such as a polypropyrene sheet having a thickness of about 0.3 mm or less, is sturdy and is used, thus securing a large mechanical strength to support the fastener assembly. The polypropyrene base member is bonded to a relatively thin polypropyrene base sheet by an ultrasonic bonding. The ultrasonic bonding achieves a strong connection between the polypropyrene member and the relatively thin polypropyrene sheet.