GENEVA, Nov. 25 -- NIKOLAEV, Aleksandr Vasilyevich (ul. Bondarenko, 12Leninogorsk, Respublika Tatarstan, 423251), НИКОЛАЕВ, Александр Васильевич (ул. Бондаренко, дом 12Лениногорск, Республика Татарстан,) filed a patent application (PCT/RU2025/050137) for "DEVICE FOR CLEARING BLOCKAGES FROM WELLBORES" on May 14, 2025....
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