陰極線管娯楽装置 (Japanese Wikipedia)

Analysis of information sources in references of the Wikipedia article "陰極線管娯楽装置" in Japanese language version.

refsWebsite

Global rank Japanese rank

216^th place

649^th place

1pong-story.com

low place

low place

163^rd place

360^th place

about.com

classicgames.about.com

Classic Games at About.com
DS Cohen. “Cathode-Ray Tube Amusement Device”. About.com. 2012年5月29日閲覧。

google.com

US Patent 2455992

pong-story.com

http://www.pong-story.com/2455992.pdf U.S. Patent #2,455,992