New Wing, Patent Office, Washington, D.C., U.S.A.
|
Interior of Patent Office, Washington, D.C., U.S.A.
|
Interior of Patent Office, Washington, D.C..
|
Model Room, in the U.S. Patent Office.
|
U.S. Patent Office, Washington, D.C..
|
U.S. Patent Office, Washington, D.C..
|
U.S. Patent Office, Washington, D.C., after the Doric Style of Architecture.
|
U.S. Patent Office, Washington, D.C. after the Doric Style of Architecture.
|
The U.S. Patent Office.
|
The U.S. Patent Office.
|
The U.S. Patent Office.
|
The U.S. Patent Office.
|
The U.S. Patent Office.
|
U.S. Patent Office.
|
U.S. Patent Office.
|
U.S. Patent Office, Washington, D.C.
|
The U.S. Patent Office.
|
The U.S. Patent Office.
|
Corridor in U.S. Patent Office.
|
Blue Corridor in the U.S. Patent Office.
|
The U.S. Patent Office.
|
Blue Corridor in the U.S. Patent Office.
|
Corridor in U.S. Patent Office.
|
Blue Corridor, in the U.S. Patent Office.
|
The U.S. Patent Office.
|
The U.S. Patent Office.
|
The Blue Corridor in the U.S. Patent Office.
|
Model Room, in the U.S. Patent Office.
|
Blue Corridor in the U.S. Patent Office.
|
The U.S. Patent Office.
|
