List of current key maps

[Will]

Hi!

Is there a way to find all active key maps used in the current buffer 
with their actual variable names so one can use those names to make 
lcoal keybindings like

(define-key ess-mode-map [(control ?c) (control ?t)] "Test!")
            ^^^^^^^^^^^^

Using the variable search function C-h v map [enter] is not helpful as 
it searches only for variables beginning with "map" not containing "map" 
somewhere in its name (opposite to "C-h a"-behavior, is this a bug of 
C-h v???)

Thanks for helping,

Will