The Panasonic Design Museum is an online museum which provides information regarding Panasonic's rich history. It includes an exclusive collection of remarkable product designs dating back to 1918.
Improved attachment plug
The very first product to be manufactured by Matsushita Electric was an innovative attachment plug, designed by Konosuke Matsushita himself. Uniquely, the plug was made from resin, and showed characteristic forward thinking, recycling the metal screw-in sections of used light bulbs.
This is a must-see! Can't believe they have it all online, this is a great source for references.
Mario / NeoSublime
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kettyjames, on December 10: 
This is a must-see! Can't believe they have it all online, this is a great source for references.
Mario / NeoSublime