Abstract: A laser leveling apparatus includes a housing, a first laser generator, and a second laser generator such that the laser leveling apparatus is reorientable between an upright position, in which the first laser generator is oriented for generating a horizontal line when activated and in which the second laser generator is oriented for generating a first vertical line when activated, and a side lying position, in which the first laser generator is oriented for producing a second vertical line when activated and in which the second laser generator is oriented for producing the first vertical line when activated. The laser leveling apparatus further includes an active leveling platform assembly having a plurality of sensor assemblies in electronic communication with a plurality of motor assemblies for tilting an upper frame assembly supporting the first laser generator and the second laser generator about a lower frame assembly about three perpendicular axes.

Abstract: A laser level system including a laser level and a bracket. The laser level projects at least one laser line and is mounted on the bracket. An integral power source is disposed within an interior of the bracket. The power source powers the laser level and the laser level is rotatable relative to the bracket.

Abstract: A laser level system including a laser level and a bracket. The laser level projects at least one laser line and is mounted on the bracket. An integral power source is disposed within an interior of the bracket. The power source powers the laser level and the laser level is rotatable relative to the bracket.

Abstract: A laser level system including a laser level and a bracket. The laser level projects at least one laser line and is mounted on the bracket. An integral power source is disposed within an interior of the bracket. The power source powers the laser level and the laser level is rotatable relative to the bracket.

Abstract: The present invention provides plant amino acid:glyoxylate aminotransferase genes. Also disclosed are the recombinant production of these plant amino acid:glyoxylate aminotransferase enzymes in heterologous hosts, screening chemicals for herbicidal activity using these recombinantly produced enzymes, and the use of thereby identified herbicidal chemicals to suppress the growth of undesired vegetation. Furthermore, the present invention provides methods for the development of herbicide tolerance in plants, plant tissues, plant seeds, and plant cells using the amino acid:glyoxylate aminotransferase genes of the invention.

Abstract: The invention relates to genes isolated from Arabidopsis that code for proteins essential for normal plant development. The invention also includes the methods of using these proteins to discover new herbicides, based on the essentiality of the genes for normal growth and development. The invention can also be used in a screening assay to identify inhibitors that are potential herbicides. The invention is also applied to the development of herbicide tolerant plants, plant tissues, plant seeds, and plant cells.