|2479||Extended Red Pan||500||Negative||4 mil Estar-AH||Fast Drying (PX)||320 in D76|
|2490||Blue||64||Negative||4 mil Estar||Dyed Gel|
|2492||Ortho||160||Negative||4 mil Estar||Clear Gel|
|2494||Extended Blue||50||Negative||4 mil Estar-AH||Fast Drying (PX)|
|2495||Ortho||320||Negative||4 mil Estar-AH||Fast Drying (PX)|
|2496||Extended Red Pan||125||Negative||4 mil Estar-AH||Fast Drying(PX)||80 in D76|
|2497||Extended Blue||50||Negative||4 mil Estar||Dyed Gel|
|2498||Panchromatic||320||Reversal||4 mil Estar-AH||Fast Drying (PX)||250 Negative, 250 in D19|
|3493||Extended Blue||50||Negative||2.5mil Estar||Clear|
|5498||Panchromatic||250||Negative||5.25 Mil Triacetate||Static Resistant||250 in D19, 250 Reversal|
This information comes from data sheets dated 1980 and 1976.
RAR stands for Rapid-access Recording. There were (are) a wide range of films for high speed photography, oscilloscopes recording etc.
The description of 2496 is: Kodak 2496 RAR film (estar-AH base) is a member of the Kodak family of RAR films designed especially for rapid-access recording and high temperature (up to 130 deg F) processing.
2498 had the following uses:
Source: Brian Pritchard