Thermos Container Insures Constant Milk Temperature (Mar, 1938)
Filed under: Sign of the Times — @ 10:54 am
Source: Modern Mechanix ( More articles from this issue )
Issue: Mar, 1938
| Buy on Ebay
Source: Modern Mechanix ( More articles from this issue )
Issue: Mar, 1938
| Buy on Ebay
Thermos Container Insures Constant Milk Temperature
Placed over a bottle of milk at the time of its delivery to a customer’s home, a thermos-type container produced by a California manufacturer is said to keep the milk at its delivery time temperature indefinitely. A simple release lever on the top of the container locks or unlocks the bottle.
