hand-cranked ice cream freezer
Food Sciences
About This Innovation
The ice cream maker was invented by a woman named Nancy Johnson in 1843. Her patented design is still used today! awarded the 1st US patent for hand-cranked ice cream freezer in 1843 (#3254)
Key Information
Category:
Food Sciences
Completion Status:
yes
Patent Number:
N/A
Patent Information
Patent Number: N/A
Technical Specifications
N/A
