Here's the translation of the patch on the link (according to the person that created it)
Line 1. His name (Father's Last name, Mother's Last Name, First Name, Middle Initial) --> That's how its done in Latin America
Line 2. Social Security Number (In his case he used part of his national ID number)
Line 3. Blood Type
Line 4a. Gender + Helmet size
Line 4b. Status (His states TRAINING)
Line 5. (With the red background) Any medical conditions
The symbol at the end of those 2 lines indicates the religion
Line 6. Military Division and his telephone number. I don't see those 2 on the original patch.
Hope this helps