Index of /sites/www.bitsavers.org/pdf/3M/patents/

Icon  Name                             Last modified      Size  
[PARENTDIR] Parent Directory                                      -   
[   ] US2654681.pdf                    2025-04-10 03:30  383K  
[   ] US3013206_Magnetic_Reader.pdf    2025-12-03 18:24  439K