please click here to see my patent
I have an invention on self-rescue in storied-building fire,it`s simple and it really works . I believe it must be worth your investment .
For more care for lives ,for you and your families maybe need it someday .
If you are investors ,please carry it out .
If you are government officers ,please pay a little attention to it .
If you are professionals ,please give me suggestion about my design or let`s go along with it .
If you are readers ,please tell others about it .
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God bless the world !