In the 1800's United States laws made by men, forbade women from owning property or entering into legal agreements in their own name, so the inventions would be in the name of her father or husband (typical males taking all the credit).But the fairer sex did invent the Dishwasher,Ironing board,Refridgerator ,Disposable nappies, not things males would ever think about apart from chilling the beer in the fridge.There were also windshield wipers,car heaters,crash helmets, bulletproof vests,fire escape and circular saw just thought I would throw a few things in for the boys!!