42 Engineering; product development; product development consultation; product research; product testing; product failure analysis services; product quality testing; product development and engineering services for others; quality assurance consultation services in the fields of statistical engineering, statistical analysis, and problem solving, as applied to manufacturing quality control, productivity improvement, defect prevention, product reliability evaluation, product development, product liability improvement and liability prevention, and methods for improving product and process control and research productivity; statistical engineering services, namely, consulting services in the field of technical problem solving and quality assurance for industry and other organizations; and product development consultations, namely, consulting management in the fields of statistical engineering, statistical analysis, and problem solving, as applied to manufacturing quality control, productivity improvement, defect prevention, product reliability evaluation, product development, product liability improvement and liability prevention, and methods for improving product and process control and research productivity