Yes there are quite a few of these:
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All the artillery type weapons are misspelled either 'artilery' or they have wrong number instead, To clear this out there are 5 Artillery type weapons:
Artilery 1 Level 18
Artillery 3 Level 21
Artillery 2 Level 25
Artillery 2 Level 29
Artilery 4 Level 30
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Burning fire is misspelled 'bruning fire'
Goliath torso is misspelled 'golaith'
There are three different torsos all named as 'Gladiator'
Two different level 3 torsos both named as 'Breach'
9 Pairs of different legs all named as 'legs'
I am not sure about this one but i think 'tripple spammer' is also misspelled.
Level 21 energy drone is named 'Pelcan' This sounds misspelled to me.
2 Completely different weapons both named as 'Blue Blast', Level 25 Side weapon & Level 26 Top weapon. Both energy based weapons.
There are 2 drones named 'Yello Angel', Level 26 Blue & yellow ones.
There are 14 different shields all named as 'Shield 5', 7 energy & 7 heat ones.
There are 6 different Teleports all named as 'Teleport 7'
There are 6 different Charge engines all named as 'Charge 7'
There are 8 different Hooks all named as 'Harpoon Mark IV'
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'The Drainer ' (lv7) & 'Mega Drain' (lv10) look exactly the same, i'm not sure if this is intentional but it is confusing for sure,
Likewise 'Medium yellow laser' (lv15) , 'Small yellow laser' (lv12) , 'Sniper rifle' (lv19) & 'Anti material rifle' (lv25) all look exactly the same.
There are 2 'Red fiering arms' Levels 15 & 18 They look exactly the same, are very similar in stats and have also the same name.
'Zappy' & 'Shield breaker' Levels 17 & 18, look exactly the same.
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So it actually turned into an essay, like i thought it would. There might still be some naming/graphical mistakes i didn't spot, but This should cover most of them. I also didn't include mistakes already stated by the author of this thread.
-Grammar nazi out, cheers.

I have noticed the electrical weapons shooting red rays
Souldescent should shoot red rays out of electrical weapons because shes too hot for blue

my favorite: the lvl 26 legendary yello angel which is somehow more blue than yellow