New 4-deoxysugar nitrosoureas corresponding to the following formula in the form of either the alpha or the beta anomer, in which - R1 denotes especially an alkyl group containing 1 to 12 carbon atoms, - R4 denotes especially H, - R6 denotes especially OH, - Nu denotes the group -(C:O)-N(-NO)-CH2CH2Hal', Hal' denoting especially chlorine. These compounds can be used for the prepara...

New 4-deoxysugar nitrosoureas corresponding to the following formula in the form of either the alpha or the beta anomer, in which - R1 denotes especially an alkyl group containing 1 to 12 carbon atoms, - R4 denotes especially H, - R6 denotes especially OH, - Nu denotes the group -(C:O)-N(-NO)-CH2CH2Hal', Hal' denoting especially chlorine. These compounds can be used for the prepara...

A plate-shaped sign (1) for identification purposes, said sign being adapted to be placed around an edged object by bending the sign around the edges of the object. To prevent possible theft, the plate (1) has at least one bend which is resistant to backward bending about an associated bending line (4, 5), and the plate is moreover capable of being bent via weakening along other bending lines (2, ...

A plate-shaped sign (1) for identification purposes, said sign being adapted to be placed around an edged object by bending the sign around the edges of the object. To prevent possible theft, the plate (1) has at least one bend which is resistant to backward bending about an associated bending line (4, 5), and the plate is moreover capable of being bent via weakening along other bending lines (2, ...

A system of illuminating a transparent glass article, such as a TV faceplate, for detecting optical defects. The source of illumination is tailored so as to be space invariant and results in producing a plurality of collimated beams which travel in a continuum of different directions. A uniformly illuminated diffuser plate with a mask has the attribute of enhancing refractive defects of a given ma...