Then you'll hear from OUR lawyers; Dewey, Cheatem and Howe!
First...I assume that you know that the line I was referring to was one of Groucho's.Second,the only law firm I recall from the Stooges was "Goldman,Goldstein,Goldberg and O'Brien".And the guy answering the phone,who had a Yiddish/Hebrew accent,said at the end of his greeting...in that Yiddish accent..."O'Brien speaking".Funny stuff!