Agostino Rampone e il brevetto del 1879 sugli strumenti a fiato metallici a doppia parete

Wind instruments built using two coaxial pipes have introduced in Europe at the beginning of hte XIXth century. In Italy the patent by Agostino Rampone iin 1879 is the first example of the original application of these ideas to metal wind musical instruments. Other makers followed his example in the last decades of the century and in the eraly XXth century.