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Patent Ofc. Interior - Glass negative photogrpah. Public domain.

Patent Ofc. Interior - Glass negative photogrpah. Public domain.

Public domain photograph of industrial building, factory, free to use, no copyright restrictions image - Picryl description

Patent ofc. - Glass negative photogrpah. Public domain.

Patent ofc. - Glass negative photogrpah. Public domain.

Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description

U.S. Patent Ofc., [Washington, D.C.]

U.S. Patent Ofc., [Washington, D.C.]

Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description

U.S. Patent Ofc., [Washington, D.C.]

U.S. Patent Ofc., [Washington, D.C.]

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Patent Ofc. - Glass negative photogrpah. Public domain.

Patent Ofc. - Glass negative photogrpah. Public domain.

Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description

Patent Ofc., [Washington, D.C.]

Patent Ofc., [Washington, D.C.]

Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description

Patent Ofc., [Washington, D.C.]

Patent Ofc., [Washington, D.C.]

Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description

Inaugural Ball, Patent Ofc. George B. Porter

Inaugural Ball, Patent Ofc. George B. Porter

Title from unverified data provided by the National Photo Company on the negative or negative sleeve. Date from negatives in same range. Copy neg. Gift; Herbert A. French; 1947. General information about the Na... More

Patent Ofc - Glass negative photogrpah. Public domain.

Patent Ofc - Glass negative photogrpah. Public domain.

Title from unverified data provided by the National Photo Company on the negatives or negative sleeves. Date from negatives in same range. Gift; Herbert A. French; 1947. General information about the National P... More

Patent Ofc., [Washington, D.C.]

Patent Ofc., [Washington, D.C.]

Public domain photograph of large public building, square, free to use, no copyright restrictions image - Picryl description

Patent Ofc. Interior - Glass negative photogrpah. Public domain.

Patent Ofc. Interior - Glass negative photogrpah. Public domain.

Title from unverified data provided by the National Photo Company on the negative or negative sleeve. Date from negatives in same range. Gift; Herbert A. French; 1947. General information about the National Pho... More