Well, the GSM patents [1] are a series of patents on particular ways to send wireless signals between handsets and base stations. I'm pretty sure that wireless radio is the only way to send signals from a cell phone, but that hasn't invalidated patents on particular methods of doing so.
Again, I'm not saying it's a good thing that this is patentable, but it's not "obvious" that it's not patentable if it's possible to patent (several times over) various ways of sending wireless signals from cell phones, or particular blends of nickel, chromium and iron.
Again, I'm not saying it's a good thing that this is patentable, but it's not "obvious" that it's not patentable if it's possible to patent (several times over) various ways of sending wireless signals from cell phones, or particular blends of nickel, chromium and iron.
[1] http://www.phonescoop.com/articles/article.php?a=9667