US1993339A
|
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Advertising apparatus
|
US1928012A
|
|
Panoramic pictorial-advertising display apparatus
|
US1932773A
|
|
Multiform knockdown box
|
US1894512A
|
|
Apparatus for displaying advertising
|
US1888377A
|
|
Multiform prism advertising apparatus
|
US1932772A
|
|
Multiform knockdown box
|
US1893052A
|
|
Pictorial display apparatus
|
US1863623A
|
|
Pictorial display apparatus
|
US1809378A
|
|
Interchangeable block billboard
|
US1728402A
|
|
Pictorial-advertising-display apparatus
|
US1676641A
|
|
Interchangeable panoramic-picture blocks
|
US1674005A
|
|
Record-holding marker
|