Walt Hiersteiner receives his first of more than 50 patents, this one for a container. Walt, an expert inventor and Berkowitz family member, drove sales at Tension for many years.
Home › Timeline Stories › Pushing the Envelope

By Andy Perdue
December 21, 2022
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The Basics of Paper Weights
When it comes to mailing, envelope weight isn’t just about grams or ounces—it’s about meeting USPS requirements and keeping costs in check. Understanding how paper basis weight and thickness are…
Read more: The Basics of Paper WeightsMeagan Young
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