The expo hits Philadelphia; selling HVAC in the desert; and more changes

摘要

In celebration of Snips' 80th anniversary this year, we are bringing back Turning Back the Pages. Longtime readers may remember an occasional department with the same name when Edward Carter published the magazine, and we also ran it during our diamond anniversary in 2007. A look at the stories and news items that appeared in past issues from the same month, it will run throughout the rest of 2012. All indications point to a record-breaking 20th International Heating & Air Conditioning Exposition at the Civic Center in Philadelphia, Jan. 25-28, 1971.