Help, Dash Tag decoding? (1930 Chrysler)

[ply33]

Along the top of the builder's tag on my Plymouth is "M.DEF.IND RGTRDA" and along the bottom is the English equivalent: "TRADE MARK REGISTERED".<P>In the 1930's the US was the largest exporter of automobiles in the world, it made sense to protect the trade marked names in more places than just the US and to so note it on the tag.

[RoadsterRich]

Can anyone tell me what (if anything) the letters at the top of the dash tag for a 30's vintage Chrysler Corporation mean? (The tag on the dash under the hood.) In particular the letters are as follows:<P>M. DE F. M.IND. RGTRDA.<P>I tried to simulate the spacing there between letters, though it may not be exactly accurate, but close. The condition of the tag is poor, so the periods may actually be pits in the tag. Is there a book or a source for information like this?<P>Thanks,<P>Rich

[RoadsterRich]

Well sheesh, that was simple enough, though I am not sure I ever would have guessed it to be registered trademark. Sure looked like gibberish or code to me. Guess I'll go hang my head in shame for a few...<P>Rich