Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 4B1 is...

4B1 is

  • Duanesburg Airport, Duanesburg, New York USA

4B1 is also in:

Acronym Definition Searched: GRITS 94268 95487 GBSI PHS USGD CEDA 55597 WDPR SOFIA ADNH TS RTAD KOB RC