In 1927, a woman's little-known brick invention quietly became a foundation of modern construction

Anna Keichline, the first licensed woman architect in Pennsylvania, changed American architecture with ideas that were far ahead of her time. Her patented K Brick made construction lighter, stronger, and more efficient in 1927. She earned multiple U.S. patents while breaking barriers for women in architecture and engineering.

Raccontata daeconomictimes.indiatimes.com