picturepage of another embodiment = metal model
picture1 of the perspex-model for the Group 1B-principle
picture2 of the perspex-model for the Group 1 B Principle
Inventus Engineering (Austria) http://www.inventus.at/
[Classification = Group 1B
Article (in Dutch) about inventor Battlogg and his inventions. This article was published in Strada, the magazine of the Dutch Ducati Club.