Hi,
While browsing through some German patent-information during a quest for information on another subject, I stumbled across this 1906 patent in Georg Luger's name.
It shows some of his experiments on the Luger rifle, using the Parabellum toggle lock and the old-pattern leaf spring and the newer coil spring.
The patent in question is the Swiss one (35943), dated January, 3rd, 1906.
