REVISION OF COPYRIGHT LAWS HEARINGS BEFORE THE COMMITTEE ON PATENTS HOUSE OF REPRESENTATIVES SEVENTY-FOURTH CONGRESS SECOND SESSION REVISED COPY FOR USE OF THE WASHINGTON, D. C., FEBRUARY 25, 26, 27 |
REVISION OF COPYRIGHT LAWS HEARINGS BEFORE THE COMMITTEE ON PATENTS HOUSE OF REPRESENTATIVES SEVENTY-FOURTH CONGRESS SECOND SESSION REVISED COPY FOR USE OF THE WASHINGTON, D. C., FEBRUARY 25, 26, 27 |