Innovation Websites

Sonia Regina de Castro

Sonia Regina de Castro
I use free Wixsite to present some of my inventions. On the Armadura Tubular website, I show photographs of various versions of prototypes and tell the development story of the invention. On the Estradeira – Alças para fixar chapéus, I show the invisible straps for attaching hats to the ears and for carrying hats.

Sonia Regina de Castro's websites:

Alças para fixar chapéus
Estradeira - Armadura Tubular
Página de Facebook @armaduratubular