paten4dPCT – The International Patent System. The Patent Cooperation Treaty (PCT) assists applicants in seeking patent protection internationally for their inventions, helps patent offices with theirPATEN4D merupakan Plaftom Permainan On Terpecaya No 1 Indonesia . Nikmati Berbagai Jenis Hiburan Game Seru Terlengkap dengan Peluang Menang Terbesar Setiap Hari