P40

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P40 stands for:

P26 / 40 , Italian tank from WWII
Interleukin 12β , protein

P-40 stands for:

Curtiss P-40 , single-engine, single-seat fighter of the Second World War
P-40 (Long Track) , mobile Russian radar from the 1980s
Huawei P40 , smartphone from Huawei

${\ displaystyle {\ mathfrak {P}}}$ ⁴⁰ stands for:

Papyrus 40