Patentes:

1. US2717437A. VELVET TYPE FABRIC AND METHOD OF PRODUCING SAME. (15/10/1952) George de Mestral: https://patents.google.com/patent/US2717437A/en

2. US3009235. SEPARABLE FASTENING DEVICE. (09/05/1958). George de Mestral: https://patents.google.com/patent/US3009235

Sites, artigos e livros:

1. National Inventors Hall of Fame. George de Mestral: https://www.invent.org/inductees/george-de-mestral

2. Velcro Companies. OUR STORY. https://www.velcro.com.au/original-thinking/our-story/

3. Velcro Companies. AN IDEA THAT STUCK: HOW GEORGE DE MESTRAL INVENTED THE VELCRO® BRAND FASTENER: https://www.velcro.com/news-and-blog/2016/11/an-idea-that-stuck-how-george-de-mestral-invented-the-velcro-fastener/

4. Velcro Companies. SECURING SUCCESS FOR NASA ASTRONAUTS. https://www.velcro.com.au/original-thinking/securing-success-for-nasa-astronauts/

5. Daniels, Patricia E. (2022, March 8). The Invention of Velcro. Retrieved from https://www.thoughtco.com/the-invention-of-velcro-4066111

6. BARDANA. Horto Didático de Plantas Medicinais do HU/CCS - Campus Universitário - Trindade – Florianópolis. https://hortodidatico.ufsc.br/bardana/

7. David Choi. The amazing story behind the annoying inspiration for VELCRO fasteners.  Business Insider. Retrieved from: https://www.businessinsider.com/the-amazing-story-behind-the-annoying-inspiration-for-velcro-2016-5

8. Bellis, Mary. (2020, August 26). Who Invented Velcro? Retrieved from https://www.thoughtco.com/who-invented-velcro-4019660

Vídeos e documentários sobre o assunto:

1. VELCRO® Brand. Who Invented VELCRO® Brand Fasteners? https://www.youtube.com/watch?v=7un9wlEvNe0

2. VELCRO® Brand. VELCRO® Brand Featured on Wicked Inventions: https://www.youtube.com/watch?v=JAq4b0t5le4

Consultas realizadas na wikipedia, com muito bom senso é claro:

1. Velcro: https://pt.wikipedia.org/wiki/Velcro

2. Arctium: https://en.wikipedia.org/wiki/Arctium

3. Georges de Mestral: https://pt.wikipedia.org/wiki/Georges_de_Mestral

Entre tantas outras pesquisas que não lembrei de anotar aqui. Acredito que com estas referências, já consigo dar uma direcionada em quem tiver interesse de pesquisar sobre o tema.

Algumas imagens (desenhos) são feitas com IA. Quando o desenho se assemelha muito à realidade, ele exibe a mensagem "imagem meramente ilustrativa" na tela. Para as demais imagens e vídeos, eu atribuo a devida fonte, como de costume. 

A maioria das imagens e vídeos estão em domínio público, são autorais de Invenções na História ou são cortesia de:

1. NASA, DVIDS, Pexels, Wikimedia Commons

2. [Crédito: Damian Apanasowicz/Pexels]. Photo by Damian Apanasowicz: https://www.pexels.com/photo/a-close-up-shot-of-a-burdock-plant-4165983/

3. [Crédito: Prosthetic Head/Wikimedia]. Prosthetic Head, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons: https://archive.org/details/BurdockHooks; https://commons.wikimedia.org/wiki/File:Burdock_Hooks.jpg

4. [Crédito: Magda Ehlers/Pexels]. Photo by Magda Ehlers: https://www.pexels.com/photo/cotton-flower-3158017/

5. [Crédito: NASA]. Pilot Fullerton plans menu as packaged food and beverages float around him. https://images.nasa.gov/details/s82-28912

6. [Crédito: NASA]. Saturn Apollo Program. https://images.nasa.gov/details/6900951

7. [Crédito: NASA/DVIDS]. Searfoss on middeck with food packets. https://www.dvidshub.net/image/726866/searfoss-middeck-with-food-packets

8. [Crédito: NASA/DVIDS]. Documentation of the flight deck Orbit Station hardware on Atlantis. https://www.dvidshub.net/image/735587/documentation-flight-deck-orbit-station-hardware-atlantis

9. [Crédito: Marine Corps Air Station Cherry Point/DVIDS]. MACS-2 Marines, families welcome autumn with Fall Family Festival. https://www.dvidshub.net/image/2248918/macs-2-marines-families-welcome-autumn-with-fall-family-festival