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It was patented by its American inventor Laurens Hammond in 1934.
The museum has row upon row of barbed wire lengths, each with its own name and the year it was patented: the 1874 Seven-Strand Cable, the 1884 Kinked Line, the 1883 Crossover Barb and the 1887 Spur Rowel.
It was patented in 1846.
It was patented and trademarked to insure quality control.
It was patented and trademarked under the name 'CU-Soil™' to ensure quality control.
Made from linseed oil and crushed cork laid on canvas, it was patented by Frederick Walton.
Similar(31)
If the object or material has some functionality, it is patented for its utility and not design.
Facebook thinks its crowdsourced translation tools are so good that it's patented them.
Secrecy protects intellectual property until it is patented.
It's patented, and made in Norway, by Norwegians.
It's patented Gear VR-style headsets, and watch-controlled photography.
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