barrier articles
What inspired Margaret E. Knight's early design for a safety device for looms?
Who contested Margaret E. Knight's patent for making square-bottom paper bags?
What systemic friction did Margaret E. Knight face in the 19th-century marketplace?
What commercial entity resulted from the success of Knight's secured paper bag machine?
In what year did Margaret E. Knight secure the patent for her square-bottom paper bag machine?
How did Margaret E. Knight's career trajectory often differ from many male inventors regarding specialization?
What commercial improvement did Knight's machine introduce to early paper bags?
What necessitated the extreme detail and self-protection Knight employed in her later work?
Besides the paper bag machinery, which other mechanical fields did Margaret E. Knight apply her inventive principles to?
What does Knight's ultimate victory in the patent litigation highlight about being a woman inventor?