In the PTO advanced search area mention is made that patents prior to 1975 do not have full search parameters available:
"Patents from 1790 through 1975 are searchable only by Issue Date, Patent Number, and Current Classification (US, IPC, or CPC)."
I have always been able to pull up many inventions by the name of the inventor. However, the above appears to indicate that there are patents which may not come up when simply using the inventor's name.
Does anyone have a definitive answer to this? It seems like a question that would come up during law school.