Very nice finds! I like vintage hand vacs, too. It looks like one of yours is a Hamilton Beach model HV. Mine is yellow and green. Would you have any idea when these were made?
Incidentally, I spotted a cool fan this week, so I snapped a picture of it. Now, I am not a fan of fans (please pardon these puns) so I know absolutely nothing about it except that it looks like a GE. It has a 220V plug on it (I am currently in country which uses 220V). This thing is a decoration in a shop and is not for sale.
broomvac-I looked up the patents(only 2 patents) and the first was for the bag support(not sure if that means the wire that holds it up or the connection where the bag attaches) and was dated september 15,1931. The second patent was for Pneumatic cleaner March 1, 1932