Number | Date | Country | Kind |
---|---|---|---|
8004379 | Jul 1980 | NLX |
Number | Name | Date | Kind |
---|---|---|---|
3839601 | Kimura et al. | Oct 1974 | |
3842197 | Broussaud et al. | Oct 1974 | |
3977684 | Camerik | Aug 1976 | |
4003091 | Wright | Jan 1977 | |
4106057 | Van Vroenhoven | Aug 1978 | |
4183069 | Roullet et al. | Jan 1980 |
Entry |
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Kawecki, "Protective Shield for Laser Lens", IBM Tech. Disc. Bulletin, vol. 13, No. 10, Mar. 1971, p. 3165. |