World's largest glass manufacturer opens Cupertino office

After all, a four-person office operating out of one of the few buildings in Cupertino without an Apple sign on it is easy to miss.   But in this case, that small office is just the tip of a much larger spear.AGC Group is one of the world's largest manufacturers of glass and glass products, with nearly $12 billion in annual revenue, and it's in town to do deals.

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