Inventions by women - who knew?

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Actually what surprised me most is not that they were invented by women but how old some of these inventions are.

Adeline D. T. Whitney - Alphabet blocks 1882
Virginia Apgar - Apgar tests, which evaluate a baby's health upon birth 1952
Ruth Wakefield - Chocolate-chip cookies 1930
Tabitha Babbitt - Circular saw 1812
Josephine Cochran - Dishwasher 1872
Marion Donovan - Disposable diaper 1950
Ida Forbes - Electric hot water heater 1917
Mary Walton - Elevated railway 1881
El Dorado Jones - Engine muffler 1917
Anna Connelly - Fire escape 1887
Ellen Fitz - Globes 1875
Sarah Boone - Ironing board - 1892
Stephanie Kwolek - Kevlar, a steel-like fiber used in radial tires,
crash helmets, and bulletproof vests 1966
Maria Beaseley - Life raft 1882
Bessie Nesmith - Liquid Paper®, a quick-drying liquid used to correct
mistakes printed on paper 1951
Mary Walton - Locomotive chimney 1879
Letitia Geer - Medical syringe 1899
Margaret Knight - Paper-bag-making machine 1871
Catherine Deiner - Rolling pin 1891
Margaret Knight - Rotary engine 1904
Patsy O. Sherman - ScotchgardT fabric protector 1956
Ann Moore - Snugli® baby carrier 1965
Florence Parpart - Street-cleaning machine 1900
Sarah Mather - Submarine lamp and telescope 1845
Mary Anderson - Windshield wiper 1903