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Q.

Is woman have invented anything ever or all invention done by only man?

Asked by Pravash Jha, 16 Apr '09 01:03 pm
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Answers (2)

 
1.

Alphabet blocks Adeline D. T. Whitney 1882 Apgar tests, which evaluate a babys health upon birth Virginia Apgar 1952 Chocolate-chip cookies Ruth Wakefield 1930 Circular saw Tabitha Babbitt 1812 Dishwasher Josephine Cochran 1872 Disposable diaper Marion Donovan 1950 Electric hot water heater Ida Forbes 1917 Elevated railway Mary Walton 1881 Engine muffler El Dorado Jones 1917 Fire escape Anna Connelly 1887 Globes Ellen Fitz 1875 Ironing board Sarah Boone 1892 Kevlar, a steel-like fiber used in radial tires, crash helmets, and bulletproof vests Stephanie Kwolek 1966 Life raft Maria Beaseley 1882 Liquid Paper, a quick-drying liquid used to correct mistakes printed on paper Bessie Nesmith 1951 Locomotive chimney Mary Walton 1879 Medical syringe Letitia Geer 1899 Paper-bag-making machine Margaret Knight 1871 Rolling pin Catherine Deiner 1891 Rotary engine Margaret Knight 1904 Scotchgard fabric protector Patsy O. Sherman 1956 Snugli baby carrier Ann ...more
Answered by saurabh choudhary, 16 Apr '09 01:06 pm

 
  
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2.

Inventions are the efforts of both make and female!
Answered by T A RAMESH, 16 Apr '09 01:07 pm

 
  
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