Recently razors.click tweeted about a razor patent that I’ve never seen before and it has some really intriguing features. It was filed in 1908, and the patent granted in 1912. It’s a patent by Clifford E Dunn, whom we have meet before.
One of described forms is a single edge razor using a double edge blade – not a unique idea by itself, but this is one of the earliest ones I know of. That design is set up to use Gillette’s three hole blade1 – thus avoiding having to reintroduce yet another blade on the market. Other forms can use a single edged blade – the early Gem blade might work, or a Christy style blade.
On to the patent, which described – according to the text – “certain new and useful Improvements in Safety-Razors”. To quote:
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