785 Metal Detector Patents Full-Image Cd-Rom! New!!

PLEASE NOTE: THIS IS A CD & NOT A METAL DETECTOR! IF YOU THINK YOU"RE BUYING A METAL DETECTOR I WILL NOT GIVE REFUNDS OR ACCEPT RETURNS.

 NOTICE TO eBAY: ALL PATENTS IN THIS CD-ROM COLLECTION HAVE ALWAYS BEEN IN THE PUBLIC DOMAIN AND HAVE NEVER BEEN COPYRIGHTED. THEY ARE GOVERNMENT DOCUMENTS ISSUED BY THE U.S. PATENT AND TRADEMARK OFFICE AND AS SUCH ARE NOT SUBJECT TO COPYRIGHT LAWS.  I AM THE OWNER OF THE COPYRIGHT ON THIS SPECIFIC PATENT COLLECTION. This collection of 785 U.S. patents in pdf file format give you a complete technical history of the invention & development of the metal detector from the 1930s to the present day. Included are the patents issued to the following major manufacturers of metal detectors: - White's Electronics - Compass Electronics - Techna - GD Electronics

- Garrett Electronics - Geonics - Minelab Electronics as well as many patents granted to individual inventors. Patents are searchable by manufacturer's name. Here in a convenient computer-readable format are all the details on how metal detectors work, including detectors for magnetic & non-magnetic objects such as land mines, gold nuggets & valuable coins; sensing coils, electronics & displays. Also included are patents on such cutting-edge technologies as Hall-effect devices, ground-penetrating radar, proximity detectors & magnetometers. Also included are detectors designed for locating buried pipes, electrical & water conduits & submerged cables. This collection is a must have for any user, designer or inventor working on metal detector technology. To view these patents you need a Mac or PC-type computer with a CD-drive & Adobe Acrobat Reader or equivalent (free download). Patents are shown full-text & can be printed.