Box 606741211
Container
Restricted
Contains 1 Result:
Research files on portable picture apparatus, 1929-30
File
Shelfmark: MS. Marconi 774
Comprises:
Papers regarding portable pictures, 1929
File for job no. 1633, portable picture system, 1929-30
Marconi portable picture system draft description, 1930
Mounted pictures of apparatus, c. 1930
Extents: 1 box
Dates:
1929-30