US2931559A
(en )
1960-04-05
Remailable billing envelopes
US1424837A
(en )
1922-08-08
Combined letter sheet
US807465A
(en )
1905-12-19
Manifold blank-book.
DE102020003949A1
(de )
2022-01-05
Mehrweg-Versandtasche, Briefumschlag zur mehrmaligen Verwendung
CH594531A5
(en )
1978-01-13
Posting date indication system on envelope
US1521417A
(en )
1924-12-30
Means for recording an address
DE1440285U
(enExample )
DE1483538U
(enExample )
DE332568C
(de )
1921-02-07
Briefumschlag mit Zustellungsbeleg
DE1404863U
(enExample )
DE1610450U
(de )
1950-07-27
Doppelter briefumschlag.
DE1374144U
(enExample )
DE1367218U
(enExample )
DE1358569U
(enExample )
DE1496760U
(enExample )
DE1364280U
(enExample )
DE1372181U
(enExample )
DE1468001U
(enExample )
DE1379824U
(enExample )
DE1523432U
(enExample )
McMaster
0
Cross-border Covers Between the US and Mexico, 1898-1902
DE1485961U
(enExample )
GB190013737A
(en )
1900-10-20
Improvements in Cards for Postal Purposes.
DE1696293U
(de )
1955-04-07
Dauerkuvert.
DE8402325U1
(de )
1984-05-10
Fensterbrief