I didn't answer this call based on the number looking like so many (many, many) crap calls we get. But it turns out that this is AirGas, and they really are a supplier of stuff for trades that use welding materials, for example.
It's probably still a telemarketing call, so I'm not sorry I ignored it. And they probably have no reason to call a residence phone number. But as far as I know, they really are a business that sells refrigerants, oxygen, acetylene, etc...
AirGas calling touting their wares. We don't ever buy from cold callers, but he was pleasant enough. Told him we were not interested in his price list, etc. Instead of asking for the owner, he should have qualified the call and found out who the BUYER was. Just a thought, in case he ever reaches someone who might be interested.