postal service program
C65276
concept
A postal service program is a system that manages the collection, processing, routing, and delivery of mail and packages between senders and recipients.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| airmail service program | 1 |
Instances (2)
| Instance | Via concept surface |
|---|---|
| Valentine re-mailing program | — |
| Empire Air Mail Scheme | airmail service program |