John P. Thompson & the History of the 'Phillips' Screwdriver Patent | #history #oregon #oregonian #patents « Adafruit Industries – Makers, hackers, artists, designers and engineers!
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The Portland businessman behind the Phillips screw
History of the Screwdriver - As Discovered by Tools Handed Down to Me
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Phillips screw and driver
July 7, 1936: Get a Grip — Phillips Screws Up the Toolbox | WIRED
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Screwdriver (cocktail) - Wikipedia
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Bit History: The Flathead | iFixit News
Oregon Inventions: Phillips Head Screw And Screwdriver
History of Screwdrivers, from the Beginning till Now | Ronix Mag
Phillips screw and driver
:max_bytes(150000):strip_icc()/close-up-of-screwdriver-and-nut-on-table-674253453-5abd4c7518ba010036861889.jpg "The History of Early and Modern Screws and Screwdrivers")
The History of Early and Modern Screws and Screwdrivers
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What are Robertson screws?
Who Invented the Screwdriver? — EIO.com
