![PDF] Optimization of the Thread Take-up Lever Mechanism in Lockstitch Sewing Machine Using the Imperialistic Competitive Algorithm | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/a19a6f3dc7c6620ca6bc371ad130372511cae15e/1-Figure1-1.png "PDF] Optimization of the Thread Take-up Lever Mechanism in Lockstitch Sewing Machine Using the Imperialistic Competitive Algorithm | Semantic Scholar")
PDF] Optimization of the Thread Take-up Lever Mechanism in Lockstitch Sewing Machine Using the Imperialistic Competitive Algorithm | Semantic Scholar
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![PDF] Modification of the Classical Needle Bar and Thread Take-Up Lever Mechanism in Sewing Machines | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/732bbab1c2cd59506e668a505cb8e356ac6cf941/1-Figure1-1.png "PDF] Modification of the Classical Needle Bar and Thread Take-Up Lever Mechanism in Sewing Machines | Semantic Scholar")
PDF] Modification of the Classical Needle Bar and Thread Take-Up Lever Mechanism in Sewing Machines | Semantic Scholar
Close up of foot and needle mechanism of old sewing machine with white thread Stock Photo - Alamy
