Can I read Upright Piano Design Patent 2,081,704 on EtoBox?

Upright Piano Design Patent 2,081,704 by Vivian Rosenberg is a document available to read on EtoBox.

What is Upright Piano Design Patent 2,081,704 about?

This document describes a patent filed by Henry R. Heller for an improved upright piano design. Some key features of the design include narrowing the lower portion of the piano case, soundboard, and backboard below the keyboard to give it a more horizontal, spinet-like appearance. It also includes positioning the legs further from the case ends for improved support and tone. The design aims to lighten the upright piano

Author

Vivian Rosenberg

Language

EN