![This Day in Patent History – On December 19, 1871, Samuel L. Clemens (pen name Mark Twain) received a patent for an improvement in adjus… | Patent, Pen name, Straps This Day in Patent History – On December 19, 1871, Samuel L. Clemens (pen name Mark Twain) received a patent for an improvement in adjus… | Patent, Pen name, Straps](https://i.pinimg.com/736x/17/5e/24/175e24c24098cbb8cab2ef1f96b245f3--pen-name-inventors.jpg)
This Day in Patent History – On December 19, 1871, Samuel L. Clemens (pen name Mark Twain) received a patent for an improvement in adjus… | Patent, Pen name, Straps
![Vintage portrait photo of American writer and humourist Samuel Langhorne Clemens (1835 – 1910), better known by his pen name of Mark Twain. Photo circa 1907 Stock Photo - Alamy Vintage portrait photo of American writer and humourist Samuel Langhorne Clemens (1835 – 1910), better known by his pen name of Mark Twain. Photo circa 1907 Stock Photo - Alamy](https://c8.alamy.com/comp/2ARD98B/vintage-portrait-photo-of-american-writer-and-humourist-samuel-langhorne-clemens-1835-1910-better-known-by-his-pen-name-of-mark-twain-photo-circa-1907-2ARD98B.jpg)
Vintage portrait photo of American writer and humourist Samuel Langhorne Clemens (1835 – 1910), better known by his pen name of Mark Twain. Photo circa 1907 Stock Photo - Alamy
![Samuel Langhorne Clemens, 1835 –1910, better known by his pen name Mark Twain American author and..., Stock Photo, Picture And Rights Managed Image. Pic. XY2-1748387 | agefotostock Samuel Langhorne Clemens, 1835 –1910, better known by his pen name Mark Twain American author and..., Stock Photo, Picture And Rights Managed Image. Pic. XY2-1748387 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/257a7abb16339636a3f2238d2ac70b91/xy2-1748387.jpg)
Samuel Langhorne Clemens, 1835 –1910, better known by his pen name Mark Twain American author and..., Stock Photo, Picture And Rights Managed Image. Pic. XY2-1748387 | agefotostock
![Mark Twain (aka Samuel Clemens), portrait taken c. 1870 when he was about 35 years old, Stock Photo, Picture And Rights Managed Image. Pic. EHH-HISL043-EC511-H | agefotostock Mark Twain (aka Samuel Clemens), portrait taken c. 1870 when he was about 35 years old, Stock Photo, Picture And Rights Managed Image. Pic. EHH-HISL043-EC511-H | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/0d6b11f7da101a0e85e27ec5b1802d2d/ehh-hisl043-ec511-h.jpg)
Mark Twain (aka Samuel Clemens), portrait taken c. 1870 when he was about 35 years old, Stock Photo, Picture And Rights Managed Image. Pic. EHH-HISL043-EC511-H | agefotostock
![Mark Twain (pen name for Samuel Langhorne Clemens ) - portrait. American author, satirist, lecturer, 30 November 1835- 21 Stock Photo - Alamy Mark Twain (pen name for Samuel Langhorne Clemens ) - portrait. American author, satirist, lecturer, 30 November 1835- 21 Stock Photo - Alamy](https://c8.alamy.com/comp/ERHEC8/mark-twain-pen-name-for-samuel-langhorne-clemens-portrait-american-ERHEC8.jpg)
Mark Twain (pen name for Samuel Langhorne Clemens ) - portrait. American author, satirist, lecturer, 30 November 1835- 21 Stock Photo - Alamy
![Mark Twain. Pen name “Mark Twain” means steamboat slang for twelve feet water Mark Twain was an American author and humorist. His real name was Samuel. - ppt download Mark Twain. Pen name “Mark Twain” means steamboat slang for twelve feet water Mark Twain was an American author and humorist. His real name was Samuel. - ppt download](https://images.slideplayer.com/19/5922809/slides/slide_3.jpg)
Mark Twain. Pen name “Mark Twain” means steamboat slang for twelve feet water Mark Twain was an American author and humorist. His real name was Samuel. - ppt download
![Samuel Langhorne Clemens (Mark Twain) portrait, c. 1907. Samuel Langhorne Clemens (1835 – 910), known by his pen name Mark Twain, was an American Stock Photo - Alamy Samuel Langhorne Clemens (Mark Twain) portrait, c. 1907. Samuel Langhorne Clemens (1835 – 910), known by his pen name Mark Twain, was an American Stock Photo - Alamy](https://c8.alamy.com/comp/2G12PK2/samuel-langhorne-clemens-mark-twain-portrait-c-1907-samuel-langhorne-clemens-1835-910-known-by-his-pen-name-mark-twain-was-an-american-2G12PK2.jpg)