IPC Definitions - January 01, 2012

G09D - Definition fr

Definition statement

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

Informative references

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