Federal & Winchester Shotshell Name/Date Question

I was looking for something, pulled these out to get to it, lost my train of search when I began wondering about the date these were made, and then the ‘Rifled Slug’ nomenclature.

When did the ‘Foster’ style slug come about, and at about what timeframe was the name ‘Rifled Slug’ adopted, and who started that name for the slugs?

Thanks for any information.