III · Science
Narodnai︠a︡ ėnt︠s︡iklopedīi︠a︡ nauchnykh i prikladnykh znanīĭ
Subjects
Science · Russian Encyclopedias and dictionaries
Language
ENG
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![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](/img/cover/10200621-M.jpg)
