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The first patent for a ballpoint pen [6] [7] was issued on 30 October 1888 to John J. Loud, [8] who was attempting to make a writing instrument that would be able to write "on rough surfaces—such as wood, coarse wrapping paper, and other articles" [9] which fountain pens could not. Loud's pen had a small rotating steel ball held in place by a ...
PEN was the medium for Advanced Photo System film (discontinued in 2011). PEN is used for manufacturing high performance fibers that have very high modulus and better dimensional stability than PET or Nylon fibers. PEN is used as the substrate for most Linear Tape-Open (LTO) cartridges.
The pen and the ink were both named "51" to mark 1939, the company's 51st anniversary, during which development for the pen was completed (U.S. design patent No. 116,097, U.S. patent 2,223,541 filed). By giving the pen a number instead of a name, Parker avoided the problem of translating a name into other languages.
Say it with me now: L-O-L. Poor Miller's Outpost was big in the '70s and '80s, but it just could never be as cool as The Limited in the '90s, no matter how hard it tried. Getty Images 5-7-9
Salt spoon – used in the U.S., up to and possibly after of the American Revolution. Four salt spoons equaled one teaspoon. [14] Seah; Ser; Shipping ton – a unit of volume defined as 50 cu ft (1.4 m 3) Stuck; Wineglass – used in the U.S., up to and possibly after of the American Revolution. One wineglass equaled 1 ⁄ 4 cup. [14]
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Obsolete technology Replacement Still used for Bathing machine: No longer required due to changing social standards of morality Hourglass: Clock: Tasks where a fixed amount of time can be measured with a low-tech solution: Exposure time tracker in saunas (where electronics might be damaged by the heat or ultraviolet light); retro kitchen timers, board games, other short-term timers.
An American-style 15×15 crossword grid layout. A crossword (or crossword puzzle) is a word game consisting of a grid of black and white squares, into which solvers enter words or phrases ("entries") crossing each other horizontally ("across") and vertically ("down") according to a set of clues. Each white square is typically filled with one ...