I'll try to explain.
In principle I'm not looking for 3 P's. My idea was that two P's with vertical beams form W's. Using the same element of P's completed W's and it reminds P's third. Three P's only in #89 and #94
Man who sees D's in the sign, regardless of the changes shall never see P's.
At #93 (which is like 72) with the contact of mid P's the end of W's can be read as B's.
Try more abstract symbols, get elegant logotype.