Around 1841, he decided to give his whole attention to these new tasks, and in 1842 obtained a patent on a machine for sewing boots, shoes and heavy leather.
He decided to give his whole attention to these new tasks. This was around 1841. He in 1842 obtained a patent on a machine for sewing boots. This was around 1841. He in 1842 obtained a patent on a machine for shoes. This was around 1841. He in 1842 obtained a patent on a machine for heavy leather. This was around 1841.