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The term Class B may refer to: * Class B amplifier, an electronic amplifier category * Class B stars * Class B (baseball), a defunct class in minor league baseball in North America * Class B airspace class, as defined by the ICAO for the busiest U.S. airports * Class B broadcast station, on the List of North American broadcast station classes * Class B drug, under the Misuse of Drugs Act (disambiguation) of various Commonwealth Nations * * Class B drug, in British law * Class B electronic device, conforming to FCC rule Title 47 CFR Part 15, Subpart B, Class B * Class B explosive, an explosives category for professional fireworks * Class B network, in the obsolete Internet classful network system * Class B pathogen treatment and pollutant criteria, an EPA reuse category in biosolids * Class B recreational vehicle, or campervan * Class B office space, a step below Class A office space * Class B Army Service Uniform ==See also== * B-class (disambiguation) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Class B」の詳細全文を読む スポンサード リンク
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