Who invented the Red and blue pen?

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  • Who invented the Red and blue pen?


A pen (Latin: penna, ... or rarer materials such as red sandalwood, glass, ivory, ... New invented' metal pens are advertised in The Times in 1792.
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Positive: 83 %
Invented by: John Loud; ... Ballpoint pen artwork continues to attract interest in the 21st Century, ... utilising only blue pens. ...
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Positive: 80 %

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Hémisphère makes each moment refreshingly elegant. In the spirit of Waterman innovation, ... Blue Fountain Pen CT . Ombres et Lumières Fountain Pen CT.
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Positive: 83 %
Red Red; Pink Pink; Lime Green Lime Green; Mint Mint; Aqua Aqua; Pool Blue Pool Blue; Cobalt Cobalt; ... Assorted Blues Retractable Gel Luxe Pens, Blue Ink ...
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Positive: 78 %
California psychology professor Abraham Rutchick studied how people use red and blue pens to grade ... NPR transcripts are created on a rush ...
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Positive: 64 %
The History of Bic Pens. BIC manufactures and sells 22 million stationery and pen products every day around the world. BIC is the number one manufacturer ...
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Positive: 41 %

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