Hammerschmidt
Hammerschmidt

Hammerschmidt octave patent

German patent application Background Summery Figure 1 Figure 2 Patent claims Photos of Hammerschmidt octave vents 1961 Hammerschmidt catalogue page & description Other companies’ inventions: …

Olds Super Tenor: A Progress Report

My Olds Super tenor as been at David’s shop for just over a couple of weeks now, and he is working hard at restoring this …

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