{"category":"invention","date":{"calendar":null,"day":10,"day_url":"https://kogda.com/10-aprelya","month":4,"text":"10 апреля 1849 года","year":1849,"year_url":"https://kogda.com/1849"},"id":127986,"kind":"event","library":[],"license":"Тексты: Русская Википедия, CC BY-SA 4.0. Люди и места: Wikidata, CC0.","mentions":[],"people":[],"places":[],"related":[],"slug":"amerikanec-uolter-hant-walter-hunt-zapatentoval-bezopasnuyu-1849","source":{"license":"CC BY-SA 4.0","name":"Русская Википедия","url":"https://ru.wikipedia.org/wiki/10_апреля"},"summary":null,"text":"","title":"Американец Уолтер Хант (Walter Hunt) запатентовал безопасную булавку","url":"https://kogda.com/e/amerikanec-uolter-hant-walter-hunt-zapatentoval-bezopasnuyu-1849","weight":27}