Very informative, thanks! As a drummer during that period, I found it interesting that one particular lick could go that far. I would have expected something better known, like the lick from Archie Bell and the Drells' "Tighten Up". There's also a great funk lick on Cold Blood's "Shop Talk" from Sisyphus, circa 1969.
I've heard some interesting sampling over time, and one of the the most curious was a vibes vamp from Herbie Mann's version of Summertime on "Live at the Village Gate", 1961. No attribution to the original, yet that loop was the dominant flavor in the sampled and constructed piece. Is collage theft?