Not even in Quebec, I don't think! But I can't find what I'm thinking of on google images either - they all have too many vertical bars. On the Ontario bicycle bars of the mid-to-late '60s, we girls could spin around hanging by one knee with our skirts flying - just like Nirvana said.
There was a
long uninterrupted horizontal bar between each vertical support. I imagine there were angled supports at intervals, plus the verticals had been sunk about 3' deep in concrete. But the main thing was a long horizontal bar at perfect mini-gymnast height.