Getting Kernel Panics on a fresh Mavericks installation; Can anyone help analyzing the KP logs?
Your particular MacBook Pro (6,2) has documented GPU problems for some units:

https://support.apple.com/kb/TS4088

http://reviews.cnet.com/8301-13727_7-57577329-263/os-x-10.8.3-forces-discrete-gpu-use-in-2010-macbook-pros/

Even if you think you are out of warranty coverage, a call to Apple would be a good move. You've done most of the troubleshooting by cleanly installing Mavericks and still see the panics. Also the first line with details sure points at persistent GPU code involvement in the panics:

 panic(cpu 0 caller 0xffffff7f9d838fac): "GPU Panic: [&lt;None&gt;] 3 3 7f 0 0 0 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0x0a2910de 0x00100000 0x00000000, BAR0 0xd2000000 0xffffff812f8cc000 0x0a5480a2, D0, P3/4\n"@/SourceCache/AppleGraphicsControl/AppleGraphicsControl-3.4.12/src/AppleMuxControl/kext/GPUPanic.cpp:127


You could also run sysdiagnose and file a bug report with Apple in case this is software instead of hardware - these repeated panic logs would give the engineers a good idea exactly where the code is getting nonsense values from the hardware and perhaps decide to handle it less harshly as far as the user is concerned.