Theory and Practice (3)

Posted on February 16, 2013 by Sean

tp2 tp31927 British patent, photos added.

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2 Responses to Theory and Practice (3)

  1. Gunther says:
    February 17, 2013 at 4:58 am

    What a great idea! If you’ll write a book someday: Please remember to include these images 🙂

    Like

    Reply

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