The crowfoots are also used in Colombia for the same purpose -- 20 amp 220 volt big air conditioners and water heaters.
The one with the perpendicular blade (220volt 20amp)is also used for the same purpose. It is also used for some small electric stoves.
However the new 220-volt installations should be equipped with grounding NEMA type versions (6-15 and 6-20).
A lot of larger sized electric stoves still use non-grounded 50-amp 120/240 plugs.
Same deal with normal 110-volt 15-amp circuits. Old installations frequently have polarized 1-15 sockets and older ones are non-polarized; while most newer professional
installations use 5-15.
A lot of the crow-foots and off-set blade sockets I saw down there were in old buildings (80s and older).
I used to have Hubbell 20-amp crowfoot somewhere in the house in with some other junk (I salvaged it from work during one of the renovations), but I when I moved I think I threw it out....
A note to travellers: I see some tourist guides for Colombia that mention the crowfoot as a standard general purpose receptacle down there. The "standard" general purpose plug is the American NEMA 5-15 plug.
The other ones are special-use devices and probably encountered by most casual travelers unless they actually go around looking for them.
[This message has been edited by SvenNYC (edited 06-07-2003).]