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2. Newell Custom Writing Instruments - Wikipedia

   en.wikipedia.org/wiki/Newell_Custom_Writing...

   In August 1976, the company launched the first Expo dry erase marker. [4] In November 1986, the company launched a new marker named Expo II. It featured an alcohol-based ink instead of methyl isobutyl ketone. Sanford discontinued the Expo 2 in the 2010s and changed this line to the alcohol-based ink. [5] Former "Sanford" logo, used until 2019

3. Angel (paintball gun) - Wikipedia

   en.wikipedia.org/wiki/Angel_(paintball_gun)

   The Angel paintball marker was designed by engineer John Rice, as an HPA-only marker. Despite its ubiquitous use in the sport at the time, Rice considered CO 2 a dirty gas, so the Angel used miniaturized components that could not withstand impurities in the air or the cooling effects of CO 2. [3]

4. UV marker - Wikipedia

   en.wikipedia.org/wiki/UV_Marker

   UV marker with UV led lamp. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent; the marks can be seen only under an ultraviolet light. They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes. UV pens can now be bought at some stationery shops to ...

5. Postage stamp - Wikipedia

   en.wikipedia.org/wiki/Postage_stamp

   The main components of a stamp: 1. Image 2. Perforations 3. Denomination 4. Country name. A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail).

6. Inverted Jenny - Wikipedia

   en.wikipedia.org/wiki/Inverted_Jenny

   [27] [28] A more recent sale was in March 2020, when a Jenny (position 95) was sold to collector Trevor Fried in Fort Lauderdale, Florida. [29] On November 15, 2023 an inverted Jenny stamp was sold to a collector, Charles Hack, at a New York Auction for two-million dollars, the highest bid ever made on this rarity. [30]

7. Ball grid array - Wikipedia

   en.wikipedia.org/wiki/Ball_grid_array

   A ball grid array (BGA) is a type of surface-mount packaging (a chip carrier) used for integrated circuits. BGA packages are used to permanently mount devices such as ...