Strange creative design of burglar-proof coffee cups
If you are worried that your cup will be secretly taken to drink water by others in the office and cause germs to spread, you can consider buying the following cup, which is designed with a unique principle, and only the owner of the cup can use it. Other people can not use it, otherwise it will spray all over you.
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Who invented the American coffee maker? The first commercial American coffee maker
When George Bunn founded Bunn-O-Magic in 1957, he probably wouldn't have thought that the American coffee machine he invented a few years later would be a great success. Bunn successfully developed the first commercial American coffee maker in 1963. After slimming down and entering the home market in 1967, here is the advertisement published at that time. You can see the first generation of American coffee.
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Coffee cup for astronauts zero gravity coffee cup
Zero gravity coffee cup, coffee lovers, have you ever used it? Through understanding that it is specially designed for astronauts, and the inventor is also an astronaut, NASA astronaut Don Pettit. It is understood that Pettit tore a piece of plastic from his flight data file mission book, folded it into a droplet shape, and sealed it at the other end. This kind of Jane
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