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User: ulathau

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  1. Re:How does it compare to a vending machine? on Optical Mice Used To Detect Counterfeit Coins · · Score: 1

    The ones used in gaming machines in australia for the last 4 years use lasers to weigh the coin and various things.

  2. Re:You forgot one on The Air Car Nears Completion · · Score: 1

    Yes, there is nothing to stop you selling it. Many ideas have been killed through greed though. Classic example is of a ceramic alloy that was patented, wears less, cheaper to make and better fuel economy when used for engine parts. Who bought the patent for it from the inventor's ? BHP billton. Wonder why ?.... The alloy has been used in one car engine to date from memory and that was a mercedes and it cost them a fortune.