Variable scope patent searching by an inverted file technique
By: [by Jacob Leibowitz, Julius Frome, and Don D. Andrews
Publisher: Office of Research and Development, Patent Office
Published: 1958
Place of publication: Washington
Language: eng
Number of pages: 11
Subjects: Information storage and retrieval systems; Patent documentation
Notes: Cover title.

"November 17, 1958"--Cover p. 2.

Includes bibliographical references.

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