Hans Wegner AT-303 X table | brass restoration  

If there's a specific product that might work to restore the patina
please let me know the product name .
Thanks !

Perhaps:
http://www.rockler.com/darkening-solution

I've used various patination chemicals and products on brass/bronze over the years with mixed results. IME, the surface needs to be completely cleaned of grime and/or natural oxidation in order for the reaction to occur at all and, depending on the strength of the solution, it can darken very quickly and requires close monitoring. Results will also vary depending on the composition and proportions of particular alloys. There were maybe a dozen different brass/bronze alloys commonly used to produce hardware like your braces at the time. What might work well on one piece of brass may not on another.
In other words, experimentation and experience go a long way to assuring desired results. If it were mine, I'd either avoid the prospect of making things worse and leave it as is and see what happens over time or, maybe, consult a pro. If I *had* to do something, I might very carefully and gently go over the area with #0000 steel wool to even out the contrast between the lighter and darker areas and then, again, let nature take its course. I don't consider the marks to be "damage" per se.

Thanks for the link Leif, the Rockler product looks like it might do the trick
but seems like it may not make it past Canada customs shipping from the USA .
Rockler has a store just across the border from us so I may have to wait until
my next trip from Vancouver > Seattle to pick up a bottle in person & give a go .
Cheers !
DJ

Thanks for your input & sharing your experience TKtoo .
I'll see if I can find a " pro " locally who might be able to help
restore the aged patina to the bright areas where the adhesive
tape once was .
Although yourself & others may not perceive the bright brass
stripes to be damage they bother me & would like to restore
an even, aged look to the brass .
Best regards,
DJ

Gunsmiths that specialize in antique weapons might be a resource for this kind of work. Also, restorers of antique lamps. Just a thought.
Best of luck with your beautiful table!

Thanks for the further thoughts TKtoo, I read something online suggesting a product
for gun metal restoration & will look further into this . A lamp restoration guy is also
a good suggestion . . . sometimes solutions can be found in unexpected places !