|
G09D 1/00
|
Railway or like time or fare tables; Indicating or reading aids therefor |
|
G09D 3/00
|
Perpetual calendars |
|
G09D 3/02
|
Perpetual calendars with interchangeable members bearing the indicia |
|
G09D 3/04
|
Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar |
|
G09D 3/06
|
Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar with rotatable members |
|
G09D 3/08
|
Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar with rotatable members of disc form |
|
G09D 3/10
|
Perpetual calendars wherein members bearing the indicia are movably mounted in the calendar with members in band form |
|
G09D 3/12
|
Perpetual calendars electrically operated |
