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What does O/R stand for?

What does O/R mean?

We've found 3 definitions for O/R:Sort:PopularA - ZCategory

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O/R

Oxygen Relief

Governmental » NASA

   
O/R

Outside Radius

Governmental » NASA

   
o/r

On Request

Miscellaneous » Aircraft

   

Couldn't find the right meaning of O/R?
Maybe you were looking for one of these abbreviations:

o/dr - O/E - O/ET - O/F - O/L - O/L-RC - O/O - o/plan - o/s - o/t - O/V - O/V-U/V - o/w - O05

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