J.K.B
Defined in 2 dictionaries — Ballentine's (1916), Bouvier (1914)
Ballentine's Law Dictionary
James A. Ballentine · 1916
Justice of the king’s bench.
Bouvier's Law Dictionary and Concise Encyclopedia
John Bouvier; revised by Francis Rawle · 1914
Justice of the King's Bench. J. Kel. Sir John Kelyngs English Crown Cases. J. P. Justice of the 1' J. P. Sm. J. P. Smith's English King's Bench Reports.