Use this online resource to search copyright-renewal records for books published in the United States between 1923 and 1963, after which copyrights were automatically renewed by the 1976 Copyright Act.
This database was created by Google engineer Jarkko Hietaniemi, who gathered the records from the U.S. Copyright Office and Project Gutenberg.
The following examples demonstrate some search operations that you can use:
apple banana Find records that contain at least one of the two words.
"apple strudel" Find records that contain the exact phrase "apple
strudel".
+apple +juice Find records that contain both words.
+apple -macintosh Find records that contain the word "apple" but not "macintosh".
apple* Find records that contain words such as "apple", "apples", "applesauce", or "applet".
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