What does S/P stand for?

S/P stands for "Signalling Projector"

How to abbreviate "Signalling Projector"?

"Signalling Projector" can be abbreviated as S/P

What is the meaning of S/P abbreviation?

The meaning of S/P abbreviation is "Signalling Projector"

What does S/P mean?

S/P as abbreviation means "Signalling Projector"