Abstract: An aqueous, homogeneous, single-part color developing concentrate comprises a color developing agent in free base form and an organic antioxidant. The concentrate also includes a water-miscible or water-soluble organic co-solvent and a quaternary ammonium salt to enhance its stability. The concentrate can be used to make a working strength processing solution, or it can be used as a replenishing composition with proper dilution, and is particularly useful for processing color negative or color reversal photographic silver halide films.

Abstract: An aqueous, homogeneous, single-part color developing concentrate comprises a color developing agent in free base form and an N,N-dialkyl- or N,N-diarylhydroxylamine antioxidant that has at least one solubilizing substituent.

Abstract: A safety electrical device, including a housing, a pair of electrical terminals projecting forwardly from said housing for insertion into an electrical receptacle, and a spring biased protective cover mounted on the housing for movement between an extended position enclosed in the forwardly projecting terminals within the cover when the terminals are not inserted in an electrical receptacle and a retracted position which permits the terminals to be inserted into the electrical receptacle. The housing includes a blade holder within which the terminals are fixed and a separate forward housing member secured in forwardly extending fashion to the blade holder. The housing is formed with outwardly extending forward flanges and a stepped outer peripery which facilitates gripping of the device and prevents the hand from slipping off the housing during insertion into and removal from an electrical receptacle.

Abstract: A cartridge-operated entertainment system having a cartridge receiving opening in a front side thereof and a removable deterrent device for preventing unauthorized use of the system. The deterrent device includes a base with a first upstanding leg for removable engagement with an aperture in the underside of the housing and a second upstanding leg positionable in adjacent relation to the cartridge receiving opening for preventing insertion of a cartridge into the opening when said first leg is engaged with the housing. A removable locking head is positionable and lockable on an upstanding end of the second leg for preventing disengagement of the first leg from the housing aperture, and thus removal of the second leg from its obstructing position adjacent the cartridge receiving opening.