IPC Definitions - January 01, 2012
G09D - Definition
This subclass covers:
Railway tables or similar time/fare tables.
Indicating or reading aids for said tables.
Perpetual calendars.
References relevant to classification in this subclass
This subclass does not cover:
Calendar blocks in printed format | B42D 5/04 |
Attention is drawn to the following places, which may be of interest for search:
Indicating positions or identities of vehicles or vehicle trains | B61L 25/02 |
Clockwork-driven calendars | G04B |
Railway or similar time/fare tables incorporating maps or route diagrams, e.g. railway routing charts | G09B 29/00 |
Display devices in general | G09F |