Inventor Elizabeth Raar 8/29/23 Inventor Elizabeth Raar 8/29/23 Episode 83: Alice H. Parker & Florence Parpart Alice patented a natural gas central heating system and Florence patented a refrigerator. Read More
Inventor Elizabeth Raar 8/29/23 Inventor Elizabeth Raar 8/29/23 Episode 83: Alice H. Parker & Florence Parpart Alice patented a natural gas central heating system and Florence patented a refrigerator. Read More