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Pb is the chemical symbol for the element lead. PB, P.B., or Pb may also refer to: ==Companies and organizations== * Packard Bell (1926), an American radio manufacturer founded in 1926 that later became a defense contractor and manufacturer of other consumer electronics * Packard Bell, a Dutch computer manufacturer which took its name from the earlier American company * Palladium Books, a publisher of role-playing games * Panera Bread, a chain of bakery–café quick casual restaurants in the United States and Canada * Parsons Brinckerhoff, an American professional services firm * PBair, a now-defunct Thai airline * Photobucket, an image hosting, video hosting, slideshow creation and photo sharing website * Piranha Bytes, a German video game developer * Pirate Bay, a file-sharing organization * Pitney Bowes, an American manufacturer of software and hardware and a provider of services related to documents, packaging, mailing, and shipping * PocketBook International, a producer of e-book readers under the PocketBook brand * Pottery Barn, an American-based home furnishing retail store chain * ProBoards, an online message board service 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「PB」の詳細全文を読む スポンサード リンク
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