[Leica] Happy 70th Birthday M Mount!

[Howard Ritter]

Thanks for the historical vignette, Frank. I’d never heard the name of the inventor. 

And if I’m correctly speculating about a colloquialism, his last name means something like “pinchpenny”!

—howard

> On Feb10, 2020, at 1715, Frank Filippone via LUG <lug at leica-users.org> wrote:
> 
> Seventy years ago (February 10, 1950) Hugo Wehrenpfennig filed the patent
> for the Leica M-mount. The patent for the M-bayonet ("Bajonettvorrichtung
> für die lösbare Verbindung zweier Kamerateile") was registered by Ernst
> Leitz GmbH at the German patent office on 10 February 1950 and published on
> 23 October 1952. Hugo Wehrenfennig was credited with the invention. The
> Leica M mount was officially introduced at the 1954 Photokina show with the
> Leica M3 as its first camera (Wikipedia
> <https://en.wikipedia.org/wiki/Leica_M_mount>).
> 
> 
> Frank Filippone
> BMWRed735i at gmail.com
> 
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