Abstract: The present invention relates to compounds of formula (I) wherein R1 to R4 are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prophylaxis of diseases which are associated with DPP-IV, such as diabetes, particularly non-insulin dependent diabetes mellitus, and impaired glucose tolerance.

Abstract: The present invention relates to compounds of formula (I) wherein R1, R2, and X are as defined in the description and claims, and pharmaceutically acceptable salts thereof. The compounds are useful for the treatment and/or prophylaxis of diseases which are associated with DPP IV, such as diabetes, particularly non-insulin dependent diabetes mellitus, and impaired glucose tolerance.

Abstract: A suction nozzle for a vacuum cleaner runs on rollers (4) at the ends of a suction passage (24) whose front and rear margins are defined by replaceable insert strips (7', 8', 9'; 7, 8, 9). The rollers have a cranked axle bar (5) supported at intervals by open bushings (23) of different orientations, integral with the nozzle body (1). At the ends of the suction passage (24) gaps between the rollers (4) and the front strips (7, 8, 9) create lateral suction. A plastic covering (2) caps the nozzle body (1) and is secured by integrally molded studs (14).

Abstract: A massage belt has pimples on one side and bristles on the other, and is made of soft synthetic plastics material. The bristles are anchored in recesses in bosses directly opposite pimples, and the bristle anchoring means extend through the base of each boss and partially into the associated pimple, thereby being safely embedded.

Abstract: A massage belt is provided with nipples or nodular protuberances on one side and with brush bristles on the other side with a pair of thickened portions at the end of the belt defining ducts or passages through which rope handles may be passed to enable manipulation of the belt by a user.