Box 606740331
Container
Contains 1 Result:
File
Associated companies' patents, 1930-67
Telefunken patents, 1930-54
SFR patents, 1930-54
GEC Semiconductors' patents, 1961-7
Collection:
The Marconi Archives
Found in:
Archives of the Wireless Telegraph a…
/
Legal records
/
Patents and trademarks
/
Patent ledgers
Shelfmark: MS. Marconi 439
Extents: 1 volume
Dates:
1930-67