Johnson County Public Library

Johnson County Public Library
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Technology

Government Websites

Organizational Websites

General Websites

  • African-American Inventions 19th Century - An index to the inventions, inventors, date, and patent number
  • African-American Inventions 20th Century - An index to the inventions, inventor, date, and patent number
  • Appliance 411 - For helpful tips on home appliances for purchasing, repairing and warranties.
  • Callsign Servers - Ham Radio Callsign lookups.
  • A Century of Inventions 1900 to 1999 - Timeline and inventions of the 20th Century.
  • Classic Typewriter Page - World of antique writing machines to explore and enjoy.
  • DVD Demystified - DVD questions answered.
  • Engineering News-Record - Provides the news, analysis, commentary and data that construction industry professionals need to do their jobs more effectively.
  • How Stuff Works - Source of credible, unbiased, and easy-to-understand explanations of how the world actually works.
  • Howard W. Sams & Co. - To provide reliable, consistent repair data for electronics repair technicians and have long been the standard in the repair industry for TVs, VCRs, Radios, etc.
  • IBM Intellectual Property Network - These pages provide an introduction to IBM's licensing practices as well as a portfolio of patents and technologies currently available for licensing.
  • Invention Timeline - To promote the progress of science and useful arts by providing a showcase for innovation. 
  • Radio Codes & Signals - CB and Scanner Radio FAQs along with frequency lists by state.
  • Repair FAQ - Comprehensive repair guides for consumer electronics equipment and other household devices.
  • Radio Reference - Provides users the ability to download scanner frequency and trunked radio system information directly from the database to their scanners.
  • SIC and NAICS Codes - Allows the user to search the 1987 version SIC (Standard Industrial Classification) manual by keyword, to access descriptive information for a specified 2,3,4-digit SIC, and to examine the manual structure.
  • Thomas Register - The most comprehensive resource for industrial information, products, services, CAD drawings, and more...
  • Trunktracker Radio Scanner Information & Database - Resource of trunking and frequency information for scanners.
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