 Nyorai kupfuurira kweiyi ndima - Pashure pokubatwa kweGeorgia neSovietmuna 1921, akaenda muutapwa kuUnited States kwaaizova mugari wemo muna 1926. Mushure mekushanda kwenguva pfupi kufekitori diki yendege muRhode Island, Grigorashvili, panguva iyoyo aizivikanwa saGregor, akaunganidzwa semugadziri wendege neDayton-Wright Company muna 1921, Curtiss-Wright muna 1923, Seversky Aircraft Company muna 1932 uye Chase Aircraft muma1940 kwaakashanda kusvika muna 1953. Muna 1934, Gregor akavamba kambani yake Gregor Aircraft iyo yakavaka ndege yechiedza yepakutanga 1GR-1. 