ozokerite wax वाक्य
"ozokerite wax" हिंदी में ozokerite wax in a sentenceउदाहरण वाक्य
- Edison's method was to indent the sound waves on a piece of tin-foil while Bell and Tainter's invention called for cutting or " engraving " the sound waves into an ozokerite wax record with a sharp recording stylus.