Science: The Path of Progress: Apr. 1, 1940

Inventions on which U. S. patents were recently granted include the following:

> Eyeglasses with a rear-view mirror attached.

> A burglar-catching window which drops, catches the burglar around the middle when he is halfway over the sill.

> A coffin with built-in illumination.

> A wrist watch with an alarm device which taps the wearer's wrist at the hour set.

> An alarm clock, for heavy sleepers, which drops ropes to tickle the face.

> A dry shaver equipped with an abrasive wheel to rub off the whiskers.

> A bell device, to be carried on a golfer's wrist, which rings when he has finished...

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