و في بعض الاحيان يكون البحث بشكل عام عن دفائن و كنوز اثرية و طبعا لكل نوع من انواع Even supposing Fisher was the very first to receive a patent for an Digital metal detector, he was only one of many who enhanced and mastered the system. Charles Garrett, the https://large-directory.com/listings13044009/5-easy-facts-about-%D9%83%D8%A7%D8%B4%D9%81-%D8%A7%D9%84%D9%85%D8%B9%D8%A7%D8%AF%D9%86-%D8%AA%D8%AD%D8%AA-%D8%A7%D9%84%D8%A3%D8%B1%D8%B6-described