B42C 15/00

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
5033774 Plastic safety case for ensuring the authenticity and condition of a gold coin, precious stone, pearl or the likeOct 17, 88Jul 23, 91Arysearch Arylan AG
4650216 Paperback-hardcover conversion insertMay 16, 83Mar 17, 87Not available
4388131 Method of fabricating magnetsDec 22, 80Jun 14, 83UNISYS CORPORATION
4374441 Method of making a book cover and pocket element thereforMay 23, 80Feb 22, 83Book Covers Inc.
4341401 Method and apparatus for covering booksFeb 11, 80Jul 27, 82Not available
4187572 Method for making integrated book liningMar 06, 78Feb 12, 80The Smyth Manufacturing Company