When I started looking around more on the siren board more and maps for countries other than the US, I've been noticing sirens that look like this a lot:
Unlike most sirens, I've seen these sirens named so many things like:
- Cooper WAVES
- HÖRMANNs
-ECNs
- I forget the rest
Here are my questions about this "series" of siren:
- With all of these brands of sirens, they look exactly the same. How do people even figure out what brand they are?
- Another thing is with all of these copies out there, who started copying who, and how are they able to? (they probably didn't patent the design)
- How many companies out there actually use this design?
- Don't they all sound almost the same? Wouldn't that mean that they were also copying the controls, too?