IBM and
others filed several IBM System/3 related patents.
Here is an overview... (Please email me if you find any additional
ones)
[HTML]
[PDF]
3701105 - CPU Architecture of the System/3.
[HTML]
[PDF]
3882701 - 5440 Disk cartridge locking latch.
[HTML]
[PDF]
3848235 - 5445 Disk drive attachment.
[HTML]
[PDF]
3938101 - I /O Architecture of the System/3.
[HTML]
[PDF]
3805245 - 5424 Card reader/puncher attachment.
[HTML]
[PDF]
3764994 - 54?? Bidirectional printing.
[HTML]
[PDF]
3925770 - 541x Audible signaling device.
[HTML]
[PDF]
3751041 - Playing cards and 96 column cards.
[HTML]
[PDF]
3953094 - 5444 cabinet configuration.
[HTML]
[PDF]
3743294 - Bridge hand dealing system and 96 column cards.
[HTML]
[PDF]
4093983 - 5415 performance improvement.
[HTML] [PDF] 3990064 - 5203 Alarm Indicator
[HTML]
[PDF]
3609305 - Card reader for 80 and 96 column cards.
[HTML]
[PDF]
3684164 - 5496 Data card puncher/verifier.
[HTML]
[PDF]
3635608 - 5440 Magnetic disk assembly.
[HTML]
[PDF]
3871576 - 5496 Data recorder and verifier.
[HTML] [PDF] 3312878 - Packaging of SLT and MST circuit modules.
[HTML] [PDF] 4328544 - Point of sales machine with a S/3 micro-processor.