G&L has used bridges in many forms. The Locktight/Saddle-Lock bridge, Dual-Fulcrum Vibrato (DFV), also available as the stainless steel DFS, 3 generations of the Leo Fender Vibrato (LFV), and ASAT Classic 6-saddle bridge are uniquely their own and covered by a multitude of Leo Fender patents discussed in the relevant subsections. But they also use bridges from other OEMs (Original Equipment Manufacturers) including the Kahler™ 2320 flat mount fine-tuner vibrato or Kahler™ 2410 4-string unit vibrato with rearward saddles for bass, Floyd Rose Tremolo System, Bigsby B5 Vibrato, TonePros Tune-o-matic bridge, and the (unbranded) half bridge with 6 saddles.