Category: Patents Ua lag ua luam daim ntawv tso cai - general Kev cai lij choj Daim ntawv rov ntxiv ntawm kev cuv npe ntawm lub patent: ib daim ntawv teev cov ntaub ntawv. Patent rau kev ua hauj lwm ntawv tso cai rau txawv teb chaws nationals Kev cai lij choj Daim ntawv tso cai tsheb tavxij - tshwj xeeb tshaj yog txais tos Kev cai lij choj Excise tus nqi. Excise thiab hom nqi thiab muab xam rau ntawm tus nqi ntawm cov se rau lub excise se. Excise nqi nyob rau hauv Lavxias teb sab Federation Kev cai lij choj