Science: The Path of Progress: Mar. 21, 1938

Patents recently granted by the U. S. Patent Office include:

¶A woman's powder puff run by a small electric motor.

¶A comb with a prong on the back for parting the hair.

¶An adjustable finger ring to fit a finger of any size.

¶A mirror which will not blur in a steamy bathroom.

¶Paint which emits a pleasant smell while drying.

¶An automatic awning which lowers itself when rain starts.

¶A shirt with detachable sleeves (summer, short sleeves; winter, long sleeves).

¶An illuminated umbrella for pedestrians on highways.


Want the full story?

Subscribe Now


Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!