Sat Sri Akaal ji sariya nu,
PatenteBook saddi Official app jis wich
Patente B
Patente C
di full detail honi hai ji. us da download link
Youtube di video utte tusi dekh skday ho kis tra is nu install krna hai.
Download link is here
http://www.mediafire.com/file/0rm54bo1br51q3l/PatenteBook.apk/file