codegrabber scanner , 433 mhz 868 mhz

I am a locksmith and searching for someone who can build me a code grabber copy the code of remote control with frequencies. 433 and 868 mhz. safe them. and then able to send them and open garage or car doors. i bought this device once but it didnt work. if you can clone a remote it must be able also to clone it with a distance to 10 meters or so. if someone can help me please only serious people.