Marvel & their Trademarks - 1980s style

So, I've been reading through my old G.I. Joe comics.  When I came across this house ad for the
Marvel Super Heroes™ Secret Wars™ toys, drawn by Mike Zeck.

I circled every instance - I believe - of the use of the TM emblem to denote trademark, all of which are also noted in the indicia at the bottom of the ad.

There are 27 TMs throughout this one-page ad.  And, if you don't want to strain your eyes, they're for:

• Marvel Super Heroes
  
• Secret Wars
  
• Doctor Doom
  
• Marvel Super Villains
  
• Kang
  
• Doctor Octopus
  
• Magneto
  
• Captain America
  
• Spider-Man
  
• Iron Man
  
• Wolverine
  
• Doom Roller
  
• Turbo Cycle
  
• Tower of Doom
  
• Secret Shield (note: NOT Secret Decoding Shield, which must have already been trademarked????)

It brought a smile to my face, so I thought I'd share.

chris