![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/PropellerBeanie-Life31Mar1958-500px.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/SafetyDropDevice1799664Diagrams-500px.jpg)
History of the Propeller Beanie and The Ultimate Propeller-Head - Origin of this Geek Icon and an Unusual Patent
![Amazon.com: Boxer Gifts Helicopter Propeller Cap Hat | Adult Unisex | Rainbow Fancy Dress, Nerd, Party | Funny Secret Santa Gift : Clothing, Shoes & Jewelry Amazon.com: Boxer Gifts Helicopter Propeller Cap Hat | Adult Unisex | Rainbow Fancy Dress, Nerd, Party | Funny Secret Santa Gift : Clothing, Shoes & Jewelry](https://m.media-amazon.com/images/I/71zlT1ZaEML._AC_UL1500_.jpg)
Amazon.com: Boxer Gifts Helicopter Propeller Cap Hat | Adult Unisex | Rainbow Fancy Dress, Nerd, Party | Funny Secret Santa Gift : Clothing, Shoes & Jewelry
![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
![Amazon.com: ArtCreativity Propeller Beanie Hats for Kids, Pack of 12, Plastic Hats with Spinning Propellers on Top, Silly Costume Accessories, Crazy Party Hats, Photo Booth Props, Fun Gag Gifts: Clothing, Shoes & Amazon.com: ArtCreativity Propeller Beanie Hats for Kids, Pack of 12, Plastic Hats with Spinning Propellers on Top, Silly Costume Accessories, Crazy Party Hats, Photo Booth Props, Fun Gag Gifts: Clothing, Shoes &](https://m.media-amazon.com/images/I/51cRM1hmEgL._AC_UL1000_.jpg)
Amazon.com: ArtCreativity Propeller Beanie Hats for Kids, Pack of 12, Plastic Hats with Spinning Propellers on Top, Silly Costume Accessories, Crazy Party Hats, Photo Booth Props, Fun Gag Gifts: Clothing, Shoes &
![New Arrival Novelties Gift Colored 100% Cotton Party Holiday Propeller Hats Have Stock - Buy Propeller Hats,Crazy Holiday Hats,100% Cotton Beanie Hat Product on Alibaba.com New Arrival Novelties Gift Colored 100% Cotton Party Holiday Propeller Hats Have Stock - Buy Propeller Hats,Crazy Holiday Hats,100% Cotton Beanie Hat Product on Alibaba.com](https://sc04.alicdn.com/kf/H87b706c1b6a74b108676bf42e62fc2e8z.jpg)