[T-Mobile Samsung Galaxy S 4] dragon-son:
Man this was a pain, I'm sure there was a more efficient way to do it but I pulled each block calling the file modem.bin

from k0nane's thread here they are labeled at follows:

aboot -> /dev/block/mmcblk0p6
apnhlos -> /dev/block/mmcblk0p1
backup -> /dev/block/mmcblk0p23
boot -> /dev/block/mmcblk0p20
cache -> /dev/block/mmcblk0p18
carrier -> /dev/block/mmcblk0p28
efs -> /dev/block/mmcblk0p10
fota -> /dev/block/mmcblk0p22
fsg -> /dev/block/mmcblk0p24
hidden -> /dev/block/mmcblk0p27
m9kefs1 -> /dev/block/mmcblk0p13
m9kefs2 -> /dev/block/mmcblk0p14
m9kefs3 -> /dev/block/mmcblk0p15
mdm -> /dev/block/mmcblk0p2
modemst1 -> /dev/block/mmcblk0p11
modemst2 -> /dev/block/mmcblk0p12
pad -> /dev/block/mmcblk0p9
param -> /dev/block/mmcblk0p19
persdata -> /dev/block/mmcblk0p26
persist -> /dev/block/mmcblk0p17
recovery -> /dev/block/mmcblk0p21
rpm -> /dev/block/mmcblk0p7
sbl1 -> /dev/block/mmcblk0p3
sbl2 -> /dev/block/mmcblk0p4
sbl3 -> /dev/block/mmcblk0p5
ssd -> /dev/block/mmcblk0p25
system -> /dev/block/mmcblk0p16
tz -> /dev/block/mmcblk0p8
userdata -> /dev/block/mmcblk0p29

pulling each one results in the fillowing

adb shell su -c "dd if=/dev/block/mmcblk0p6 of=/sdcard/modem.bin bs=4096" nope 2mb file
adb shell su -c "dd if=/dev/block/mmcblk0p1 of=/sdcard/modem.bin bs=4096" unlikley 12.5 mb
adb shell su -c "dd if=/dev/block/mmcblk0p23 of=/sdcard/modem.bin bs=4096" possibily NON-HLOS.bin 6mb file
adb shell su -c "dd if=/dev/block/mmcblk0p20 of=/sdcard/modem.bin bs=4096" unlikley 10mb file
adb shell su -c "dd if=/dev/block/mmcblk0p18 of=/sdcard/modem.bin bs=4096" nope 2gb file - cache
adb shell su -c "dd if=/dev/block/mmcblk0p28 of=/sdcard/modem.bin bs=4096" unlikley 20mb file
adb shell su -c "dd if=/dev/block/mmcblk0p10 of=/sdcard/modem.bin bs=4096" unlikely 13.6mb file
adb shell su -c "dd if=/dev/block/mmcblk0p22 of=/sdcard/modem.bin bs=4096" unlikley 10mb file
adb shell su -c "dd if=/dev/block/mmcblk0p24 of=/sdcard/modem.bin bs=4096" nope 3mb file
adb shell su -c "dd if=/dev/block/mmcblk0p27 of=/sdcard/modem.bin bs=4096" unlikely 20mb file
adb shell su -c "dd if=/dev/block/mmcblk0p13 of=/sdcard/modem.bin bs=4096" nope 700kb file
adb shell su -c "dd if=/dev/block/mmcblk0p14 of=/sdcard/modem.bin bs=4096" nope 700kb file
adb shell su -c "dd if=/dev/block/mmcblk0p15 of=/sdcard/modem.bin bs=4096" nope 700kb file
adb shell su -c "dd if=/dev/block/mmcblk0p2 of=/sdcard/modem.bin bs=4096" possibily modem.bin 51.5mb file
adb shell su -c "dd if=/dev/block/mmcblk0p11 of=/sdcard/modem.bin bs=4096" nope 3mb file
adb shell su -c "dd if=/dev/block/mmcblk0p12 of=/sdcard/modem.bin bs=4096" nope 3mb file
adb shell su -c "dd if=/dev/block/mmcblk0p9 of=/sdcard/modem.bin bs=4096" unlikely 16.5mb file
adb shell su -c "dd if=/dev/block/mmcblk0p19 of=/sdcard/modem.bin bs=4096" possibily NON-HLOS.bin 6mb file
adb shell su -c "dd if=/dev/block/mmcblk0p26 of=/sdcard/modem.bin bs=4096" unlikley 9mb file
adb shell su -c "dd if=/dev/block/mmcblk0p17 of=/sdcard/modem.bin bs=4096" unlikley 8mb file
adb shell su -c "dd if=/dev/block/mmcblk0p21 of=/sdcard/modem.bin bs=4096" unlikley 10mb file
adb shell su -c "dd if=/dev/block/mmcblk0p7 of=/sdcard/modem.bin bs=4096" nope 512kb file
adb shell su -c "dd if=/dev/block/mmcblk0p3 of=/sdcard/modem.bin bs=4096" nope 120kb file
adb shell su -c "dd if=/dev/block/mmcblk0p4 of=/sdcard/modem.bin bs=4096" nope 256kb file
adb shell su -c "dd if=/dev/block/mmcblk0p5 of=/sdcard/modem.bin bs=4096" nope 512kb file
adb shell su -c "dd if=/dev/block/mmcblk0p25 of=/sdcard/modem.bin bs=4096" nope 8kb file
adb shell su -c "dd if=/dev/block/mmcblk0p16 of=/sdcard/modem.bin bs=4096" nope 2gb file - system
adb shell su -c "dd if=/dev/block/mmcblk0p8 of=/sdcard/modem.bin bs=4096" nope 512kb file
adb shell su -c "dd if=/dev/block/mmcblk0p29 of=/sdcard/modem.bin bs=4096" nope 2gb file - userdata

The ones that match up closest to what you said for file sizes are

/dev/block/mmcblk0p2 possibily modem.bin 51.5mb file labeled mdm from k0nane thread

/dev/block/mmcblk0p19 possibily NON-HLOS.bin 6mb file labeled param from k0nane thread

/dev/block/mmcblk0p23 possibily NON-HLOS.bin 6mb file labeled backup from k0nane thread

So here are the commands without the file sizes next to them and stuff.

adb shell su -c "dd if=/dev/block/mmcblk0p6 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p1 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p23 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p20 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p18 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p28 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p10 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p22 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p24 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p27 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p13 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p14 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p15 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p2 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p11 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p12 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p9 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p19 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p26 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p17 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p21 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p7 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p3 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p4 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p5 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p25 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p16 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p8 of=/sdcard/modem.bin bs=4096"
adb shell su -c "dd if=/dev/block/mmcblk0p29 of=/sdcard/modem.bin bs=4096"

Hope this helps us in this endeavor.