ok, i get it now. The answer would be ..........they didnt really. The first seeders came out with any number of differnt tags, depending on if it was a tractor mounted or push styled one. A lot of the push ones used a tag that said Farm Master. These were mostly units with wood handles, although i have seen one with a DB tag on it at a show. Some of the early push seeders used just a sears tag. All the WT seeders that i know of used a DB tag. The later Suburban seeders used the Db tag up until about 1962, then it went to a sears/simpson tag. Yes plain as mud, i know. Some of the other things you see are ,,,,,green DB tags, red DB tags, green farm master tags, and black sears tags. Some place here i have a manual that shows all the differnt seeder setups one could have gotten.,,push, WT and RT.