Micronauts was the North American rebranding of the Japanese line of Microman toys released by Takara. Mego handled the license in the US, while in the UK it was the companies Airfix and Lion Rock. Airfix also handled the license for the German market. You can read more Micronauts info here by Ron Pringle.
Advert for the Micronauts comic series. UK. Star Wars Weekly. 1978.
Airfix Micronauts advert. UK. Star Wars Weekly. 1978.