Search for: Title Author Subject Series Call number that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Patents and government-developed inventions 1 Patents -- Drama. 1 Patents -- Fiction. 2 Patents -- Juvenile literature. 1 Patents -- Maryland -- History. 1 Patents -- Searching -- SEE: Patent searching 2 Patents -- United States 1 Patents -- United States -- Drawings. 3 Patents -- United States -- History. 1 Patents -- United States -- History -- 20th century. 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >