another sundial in Munich?

[Thibaud Taudin-Chabot]

Today somebody told me which made me think that he described some kind of
sundial. It should be in a (public) passage in the European Patent Amt in
Munich Germany. (Not the one in the German Patent Amt!). I checked the book
'Sonnenuhren Deutschland und Schweiz' (1974 edition) but could find it.
Somebody knows about it? 
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Thibaud Taudin Chabot,  email: [EMAIL PROTECTED]