Show inventions invention that won favor who invented the penny in the slot blot weighing machine why mr goor george ge weaver of 0 bath who died penniless is as you might say leav las ing only a paltry and who invented the police whistle it was none other than mr joseph hudson who broke upon a startled world of burglary in 1881 1994 with his shrill masterpiece and at once secured a contract for of his products today there are different types of whistle all manufactured fractured by the firm which mr hudson founded london answers |