Number | Name | Date | Kind |
---|---|---|---|
4173408 | Stewart | Nov 1979 | |
4179212 | Lahr | Dec 1979 | |
4728984 | Daniele | Mar 1988 | |
4908873 | Philibert et al. | Mar 1990 | |
4977594 | Shear | Dec 1990 |
Entry |
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Xerox Disclosure Journal, vol. 4, No. 1, Jan. 1979, Stamford, Ct.; pp. 117-118; Hickey `Copyright Accounting System`. |