Hammerschmidt octave patent
Originally published in 2024. Updated March 2026 German patent application Background Summery Figure 1 Figure 2 Patent claims Photos of Hammerschmidt octave vents 1961 Hammerschmidt …
The Bassic Sax For 2025 & Beyond
Originally published in 2024. Updated March 2026 German patent application Background Summery Figure 1 Figure 2 Patent claims Photos of Hammerschmidt octave vents 1961 Hammerschmidt …