GENEVA, Oct. 28 -- PLUGINA, Ekaterina Vladimirovna (ul. Yubileynaya, dom 65, kv. 169Samarskaya oblast, g. Tolyatti, 445057), ПЛУГИНА, Екатерина Владимировна (ул. Юбилейная, дом 65, кв. 169Самарская область, г. Тольятти,) filed a patent application (PCT/RU2025/050083) for "ROTARY DUCT ENGINE" on Mar 27, 2025. With publication no. WO/20...
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