Federal statutory protection for mask works.
Edition: [Rev. 01/2004].
Series: Circular -- 100.; Circular (Library of Congress. Copyright Office) -- 100.
Publisher: U.S. Copyright Office
Published: 2004
Place of publication: [Washington, DC] (101 Independence Ave., SE, Washington 20559-6000)
Language: eng
Subjects: Copyright -- United States; Design protection -- United States; Masks (Electronics); Integrated circuits -- Masks; Semiconductors
Notes: Shipping list no.: 2004-0077-P.

Also available via Internet from the LC web site. Address as of 01/11/04: http://www.copyright.gov/circs/circ100.pdf; current access available via PURL.