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Publication coverage: 1800s - present (varies by country; updated weekly)Explore 66 million patent documents from more than 51 regional and national patent offices. Major national collections include Canada, China, European Patent Office, Japan, Korea, Russia, U.K. and U.S. Advanced functions include chemical structure and biological sequence search; cross-lingual translation search; and national status information.
Publication coverage: Covers from the beginnings of the Christian Church to 1439Contains 161 volumes of Greek material (with Latin translations) relevant to the study of the history of the Christian Church from its beginnings through the Council of Florence in 1439.
Publication coverage: 18th-19th centuriesDocuments the move to industrialization in Pennsylvania through local newspapers including Chester County Republican, Delaware County American Delaware County Democrat Delaware County Republican Media Advertiser The Post Boy The Upland Union The Weekly Visitor, and the PA Packet