I want to know the answer to the following question:
By whom was the phonautograms patented?
All the background I'm provided with is that "The phonautograph, patented by Léon Scott in 1857, used a vibrating diaphragm and stylus to graphically record sound waves as tracings on sheets of paper, purely for visual analysis and without any intent of playing them back.". Is that enough to answer the question?
Answer: yes