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Arms buildup period, 6 letters
Before things got out of hand, 6 letters
From the '30s, e.g., 6 letters
Like apartments built in the 1930s, 6 letters
Period before 1914 and 1939, e.g., 6 letters
Period before hostilities, 6 letters
Period prior to 1941, in the U.S., 6 letters
Prior to 1941, perhaps, 6 letters
Heat in advance, as an oven, 7 letters
Heats (the oven) in advance, 8 letters
Heats up in advance, 8 letters
Cleanse with water before packaging, 7 letters
Get some blue jeans ready for sale, 7 letters
Laundry preparation, 7 letters
Ready some Levi's for shipment, 7 letters
Soften at the factory, as jeans, 7 letters
Like some new jeans, 9 letters
Some manufacturers do it to thread, 6 letters