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Another early version of the clipboard, known as the "memorandum file", was invented by American inventor George Henry Hohnsbeen in 1921, for which he was granted U.S. patent 1,398,591. [2] Related to the clipboard is the Shannon Arch File, which was developed around 1877.
Particleboard with veneer. Particle board, also known as particleboard or chipboard, is an engineered wood product, belonging to the wood-based panels, manufactured from wood chips and a synthetic, mostly formaldehyde-based resin or other suitable binder, which is pressed under a hot press, batch- or continuous- type, and produced. [1]
Download as PDF; Printable version; In other projects Wikidata item; Appearance. move to sidebar hide Chipboard may refer to: ... Chipboard may refer to:
Steiner opened his carpenter's shop in 1944, and, in the middle of the 1950s, while looking for a simple means of joining the recently introduced chipboard, invented the Lamello joining system. In the succeeding years there followed further developments such as the circular saw and the first stationary biscuit (plate) joining machine in 1956 ...
The Portable Document Format (PDF) was created by Adobe Systems, introduced at the Windows and OS/2 Conference in January 1993 and remained a proprietary format until it was released as an open standard in 2008.
A Betamax tape Analog video format developed by Sony. Inspired the later Betacam professional format. 1976 VHS: Video Home System Analog video recording on tape cassettes. Beat Betamax to become the dominant format for home analog video. 1978 LaserDisc: Close-up of grooves on a LaserDisc Analog video that was read via laser stored on a 12 inch ...
Japanese engineer Jun-ichi Nishizawa invented the avalanche photodiode [20] 1953: First fully transistorized computer in the U.S. 1958: American engineer Jack Kilby invented the integrated circuit (IC). 1960: American engineer Theodore Maiman develops the first laser: 1962: Nick Holonyak invented the LED. 1963: First home Videocassette recorder ...
A combination between a whiteboard and a cork bulletin board Original early 1960s ad for "Plasti-slate", the first whiteboard/dry erase board invented by Martin Heit. It has been widely reported that Korean War veteran and photographer Martin Heit and Albert Stallion, an employee at Alliance, a leading flat rolled steel sheet supplier should be credited with the invention of the whiteboard in ...