He patented the first practical sewing machine in 1846. In 1846, the idea of a sewing machine was nothing new. The first patents for such a machine had been granted in England in 1755, in Austria in 1819, the U.S. in 1826 and France in 1830..Early sewing machines were designed for industrial applications.
Job description is a broad, general, and written statement of a specific job, based on the findings of a job analysis. It generally includes duties, purpose, responsibilities, scope, and working conditions of a job along with the job's title, and the name or designation of the person to whom the employee reports.
A specification may refer to a type of technical standard (the main topic of this page). Using the word specification without additional information to what kind of specification you refer to is confusing and considered bad practice within systems engineering.A Requirement specification is a set of documented requirements to be satisfied by a material, design, product, or service. data sheet is not a technical specification as described in this article. A . In-service  or  Maintained as  specification, specifies the conditions of a system or object after years of operation, including the effects of wear and maintenance (configuration changes).