http://books.google.com/books?q=gravity+generator
http://books.google.com/books?q=gravity+electric+circuit
http://books.google.com/books?q=gravity+flow+generator
http://books.google.com/books?q=gravity+flow+electric+circuit
http://books.google.com/books?q=gravity+flux+generator
http://books.google.com/books?q=gravity+flux+circuit
http://books.google.com/books?q=gravity+field+generator
http://books.google.com/books?q=gravity+field+circuit
http://books.google.com/books?q=gravity+wave+generator
http://books.google.com/books?q=gravity+wave+circuit
http://books.google.com/books?q=gravity+pulse+generator
http://books.google.com/books?q=gravity+pulse+circuit