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Believe it or not but these have been used for ages. Even Ancient Romans used ones to protect their windows. The modern version was invented by John Hampson of New Orleans who added the ability to change the angle of the horizontal slats to regulate the light in the room.

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Believe it or not but these have been used for ages. Even Ancient Romans used ones to protect their windows. The modern version was invented by John Hampson of New Orleans who added the ability to change the angle of the horizontal slats to regulate the light in the room.

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This was designed by Armando M. Fernandez. It may be utilized to assist the operation of moving this across the hard surface

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This was designed by Armando M. Fernandez. It may be utilized to assist the operation of moving this across the hard surface

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Although this invention seems very simple, the modern version wasn’t invented until 1899, by which time steel that was flexible enough to be bent into this shape had become commonly available. Before that time people had used string and pins etc. to hold paper together, but all those methods damaged the paper.

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Although this invention seems very simple, the modern version wasn’t invented until 1899, by which time steel that was flexible enough to be bent into this shape had become commonly available. Before that time people had used string and pins etc. to hold paper together, but all those methods damaged the paper.

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This was invented by Bette Nesmith Graham, who was working as a typist and needed something to correct the many mistakes she made while she was typing. The invention was bought by Gillette Corporation in 1979 for $47.5 million plus royalties. IBM had previously rejected the product in the 1950’s.

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This was invented by Bette Nesmith Graham, who was working as a typist and needed something to correct the many mistakes she made while she was typing. The invention was bought by Gillette Corporation in 1979 for $47.5 million plus royalties. IBM had previously rejected the product in the 1950’s.

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Although Xerox later became the most famous brand for this product due to producing the first compact version that could be connected to a normal telephone line in 1966, in fact the first machine that could transmit writing through an electrical wire had been invented in 1843 by the Englishman Alexander Bain.

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Although Xerox later became the most famous brand for this product due to producing the first compact version that could be connected to a normal telephone line in 1966, in fact the first machine that could transmit writing through an electrical wire had been invented in 1843 by the Englishman Alexander Bain.

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This was invented by Dick Drew, the same man who had earlier invented masking tape who was working for 3M at the time. It became 3M’s most successful product ever.

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This was invented by Dick Drew, the same man who had earlier invented masking tape who was working for 3M at the time. It became 3M’s most successful product ever.

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This was invented by a Hungarian called Laszlo Biro, who was working for a newspaper and was annoyed at wasting so much time filling fountain pens with ink.

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This was invented by a Hungarian called Laszlo Biro, who was working for a newspaper and was annoyed at wasting so much time filling fountain pens with ink.