Keywords: Cryogenics 002.jpg The helium liquifier designed by the Cryogenic Engineering Laboratory of NBS was one-tenth the size of that proposed for the Navy Bureau of Aeronautics D B Mann left liquid helium project leader designed the liquification process equipment B W Birmingham right Assistant Chief of the Cryogenic Engineering Laboratory carried out studies of the feasability of helium liquification and transportation at or near its liquid density National Institute of Standards and Technology 1959-01-01 National Institute of Standards and Technology The images in the Cryogenics Photographic Collection are in the public domain and are not subject to copyright in the United States However please pay special attention to the individual works to make sure there are no copyright restrictions indicated Individual works may require securing other permissions from the original copyright holder Use of the images from NIST Digital Collections is not restricted but a statement of attribution is required Please use the following attribution statement National Institute of Standards and Technology Digital Collections Gaithersburg MD 20899 PD-USGov National Bureau of Standards National Institute of Standards and Technology Cryogenics |