![History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent](https://todayinsci.com/Events/Patent/PropellerBeanieCalvinThm.jpg)
History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent
![History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent](https://todayinsci.com/Events/Patent/MattelBeanyCopter200px.jpg)
History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent
![History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent](https://todayinsci.com/Events/Patent/PropellerBeanieAds-Billboard-12Jun1948.jpg)
History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent
![History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent](https://todayinsci.com/Events/Patent/PropellerBeanieAds-Billboard-5Jun1948.jpg)
History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent
![1 Pack Detachable Adult Propeller Hat Baseball Cap Rainbow Top Hat Brightly Rainbow Color Blue Brim, Blue | Fruugo TR 1 Pack Detachable Adult Propeller Hat Baseball Cap Rainbow Top Hat Brightly Rainbow Color Blue Brim, Blue | Fruugo TR](https://img.fruugo.com/product/0/18/459485180_max.jpg)
1 Pack Detachable Adult Propeller Hat Baseball Cap Rainbow Top Hat Brightly Rainbow Color Blue Brim, Blue | Fruugo TR
![History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent](https://todayinsci.com/Events/Patent/PropellerBeanieAds-Billboard-19Jun1948.jpg)