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A screwdriver is a tool, manual or powered, for turning (driving or removing) screws. A typical ... screwdrivers were used in Europe in the late Middle Ages. They were probably invented in the late ...

History of Screws and Screwdrivers - Inventors - About.com


In 1908, square-drive screws were invented by Canadian P. L. Robertson. ... than a slot head because the screwdriver will not slip out of the screw's head during ...

Find Out about the History of Screwdrivers - Working Man


The first mention of a screwdriver or something resembling a screwdriver in history is assumed ... Some people believe that the screwdriver was invented from a

History of the Robertson Screwdriver - ThomasNet


The history of the Roberston screwdriver, invented by P.L. Robertson, is detailed here.

8 Little Known Facts about the History of the Screw - Craftech Blog


Jun 12, 2013 ... He discovers that all of these tools were invented during the Roman age if ... To remove a screw without a screwdriver, one actually has to cut ...

Here's the origin of the screwdriver cocktail - Business Insider


Mar 24, 2015 ... One out of three cocktails ordered in the US contain vodka, a spirit that pours in $20 billion annually in sales, according to Victorino Matus, ...

One Good Turn: A Natural History of the Screwdriver and the Screw ...


And, Rybczynski discovered, the screwdriver is a relative newcomer in humankind's arsenal of gadgetry, an invention of the late European Middle Ages and the ...

Screwdriver History_ZHIDA Hardware CO.,LTD


Nov 1, 2012 ... The screwdriver was invented in Germany in the late fifteenth century. Originally called a 'screwturner,' the first documentation of the tool is in ...

Phillips Head Screwdriver - Infoplease


Who is the Phillips head screwdriver named after? ... Henry F. Phillips, of Portland, OR, invented the X-shaped socket head screw for car makers who needed a ...

Screw This, Screw That: Why We Have Different Types of Screws ...


Jan 21, 2011 ... If you've ever mistakenly grabbed the Phillips head screwdriver ... Historians believe it was invented in Germany, but aren't sure exactly when.

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The History of the Phillips Screwdriver - Charles & Hudson


32 years ago the Phillips screwdriver was patented by Henry F. Phillips who was a Portland, Oregon, businessman. from Wired Phillips wasn't trying to make.

Screwdriver Facts, information, pictures | Encyclopedia.com articles ...


The second most widely used screwdriver, the "Phillips," was invented in the late 1920s by Henry Phillips. Soon after its introduction, the tool posed a dilemma ...

The History Of The Screwdriver | VinePair


Apr 26, 2016 ... The Screwdriver might be a sneaky, and extremely simple, mixed drink. ... Not to imply the drink was invented in the States, but by the late ...