![Ulrika Sultan on X: "Letitia Geer invented the one-hand operated syringe (1886/99). Her invention is the blueprint for medical syringes used worldwide and continues to inspire medical syringe inventions. #WomensHistoryMonth #MedTech #WomenInventor # Ulrika Sultan on X: "Letitia Geer invented the one-hand operated syringe (1886/99). Her invention is the blueprint for medical syringes used worldwide and continues to inspire medical syringe inventions. #WomensHistoryMonth #MedTech #WomenInventor #](https://pbs.twimg.com/media/ETI3YFjWAAAu16U.jpg)
Ulrika Sultan on X: "Letitia Geer invented the one-hand operated syringe (1886/99). Her invention is the blueprint for medical syringes used worldwide and continues to inspire medical syringe inventions. #WomensHistoryMonth #MedTech #WomenInventor #
Smartlock Safety Syringe - the South African invention that changed medical treatment - the Awesome World of Things
![International Women's Day: This year, let's thank 10 women whose inventions made our lives better - India Today International Women's Day: This year, let's thank 10 women whose inventions made our lives better - India Today](https://akm-img-a-in.tosshub.com/indiatoday/images/story/201803/Letitia-Mumford-Geer.jpeg?VersionId=NU80Rdib0p41RjqqrOLmhWpLwSjq765u)