Number | Date | Country | Kind |
---|---|---|---|
3818535 | May 1988 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
4393127 | Greschner et al. | Jul 1983 | |
4417946 | Bohlen et al. | Nov 1983 | |
4448865 | Bohlen et al. | May 1984 | |
4724328 | Lischke | Feb 1988 | |
4780382 | Stengl et al. | Oct 1988 |
Number | Date | Country |
---|---|---|
0191439A1 | Aug 1986 | EPX |
Entry |
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Behringer et al., "Shadow Projection Mask and Method of Producing Same", IBM Tech. Disc. Bull., vol. 27 (6), Nov. 1984. |