They are all carbon based products and invented by women.
This was also asked a week ago.
http://ph.answers.yahoo.com/question/ind鈥?/a>What do bulletproof vest,fire escapes,windshield wipers,and laser printers,all have in common?
I believe they were all invented by women but I'm still trying to find documentation to confirm this. Ok this is what i have found so far,What do bulletproof vest,fire escapes,windshield wipers,and laser printers,all have in common?
none of them are effective for very long.
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