The pane of glass scene would be repeated in the 1972 film "What's Up, Doc?" with much more hilarious results.
The Acme Company, a popular vendor in WB shorts, has expanded into the car wash business here.
The roller skating scene on subway tracks was used in a similar fashion in a few Roadrunner Coyote shorts, usually on a train track.
The billboard Pinky skates by several times encourages consumers to drink orange juice.
Pinky wears metal wheeled ball bearing roller skates that attached to the foot or shoe of the wearer. These were adjusted in size by the use of a skate key. Shoe skates, popularized by televised Roller Derby matches on TV, were also in use. These would eventually evolve into the modern roller blade.