Korean-English Typewriter Keyboard layout

"This layout tried to illustrate the arrangement of two letters to the right with English Roman characters, like the fourth generation Korean-English combined manual typewriter keyboard. The first sound'ㄱ' and the hole sound'ㅣ' and the ones in the base are a suitable arrangement for an electronic device keyboard that requires less force to press the keys than a manual typewriter. Until the mid-1980s, general distribution arrangements in which the first sounds'ㄱ' and'ㅣ' were placed at the base as in the above arrangement were not used. However, it can be seen from the above arrangement table in the patent publication that the features of the arrangement of the blank carousel type counters, which were widely introduced from the 3-89 keyboard, were already studied in the mid-1970s."— Translation of https://pat.im/962