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100th anniversary of modern zipper!
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    Let me celebrate the 100th anniversary of the morden-zipper's birth!

    In this very month 100 years ago,  the Sundback's zipper was born.

    Here is HOOKLESS No.2, invented by Sundback a century ago.

    The first sample model of HOOKLESS No.2 was appeared in December in 1913.

                ▲ The first model of HOOKLESS No.2



    ☆☆☆


    I also respect Sundback, of course.

    I'd like to give the great engineer bunch of my admiration!

    Without him, we could not see the zippers as what they are today.

    G. SUNDBACK
     Dr. Gideon Sundback, founding father of modern zipper
         (Courtesy of Prof. Robert Friedel)


    Actually, the invention came to produce one year later.
    He applied for the patent in August, 1914
    but were first sold in October the same year.


    Every part except for the slider had already reached perfection.
    It shows how Sundback created high-quality product 100 years ago.


    At that time, zippers were sometimes called "tear-fastener "
    as they focused on only closing.
    When you want to open a zipper,
    you should tear it down with your both hands.
    There was not an idea to use a slider when pulling a zipper down.



    HOOKLESS No.2 in the above is quite valuable.
    This is the only zipper that I confirmed first hand in my long-time research.
    | zipperman | 17:00 | - | - | - |

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