Hello,
Openbridge released version 6 of their freeICON pack. Search “figma openbridge icons”
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thanks for sharing @Vratislav
If you’re interested in icons … Material Design Icons - Icon Library - Pictogrammers
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uxwing.com also has a variety of free vector icons. No contribution needed for commercial projetcs.
They are not specific to machine HMIs, but I always find good icons or at least inspiration.
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Here is my list of icon webpages:
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Mind the CC BY 4.0 license!
If I’m not mistaken, Pictogrammers Apache 2.0 also requires attribution!
I always try to look for icons which are free for commercial use / licensed under the MIT license. No attribution or anything required. uxwing is a good example for that!
I guess it depends on the visibility of your product if anyone will ever notice 
that is valid point, @krausertm
Be careful!
Even MIT requires you to show the license texts with your product:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
CHH
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Guess you’re right. That’s why I love the WTFPL most of all 
I don’t know any IconPacks using it though…
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