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What does STANDING+SIGNAL+INSTRUCTION Stand For?
For STANDING SIGNAL INSTRUCTION we have found 2 definitions.
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What does STANDING+SIGNAL+INSTRUCTION mean? We know 2 definitions for STANDING+SIGNAL+INSTRUCTION abbreviation. Possible STANDING+SIGNAL+INSTRUCTION meaning as an acronym, abbreviation, shorthand or slang term vary from category to category. Please look for them carefully.