Number | Name | Date | Kind |
---|---|---|---|
2851434 | Jones et al. | Sep 1958 | |
3268490 | Sunden et al. | Aug 1966 | |
3380949 | Isley et al. | Apr 1968 | |
3437717 | Isley et al. | Apr 1969 | |
3940405 | Serad | Feb 1976 | |
4066731 | Hungerford et al. | Jan 1978 | |
4144299 | Inoue et al. | Mar 1979 | |
4172065 | Parkinson et al. | Oct 1979 | |
4226817 | Siegman | Oct 1980 | |
4301112 | Zwick | Nov 1981 | |
4536365 | Zwick | Aug 1985 | |
4683261 | Inoue et al. | Jul 1987 | |
4743417 | Bakkelunn | May 1988 | |
4943618 | Stoy et al. | Feb 1990 |
Number | Date | Country |
---|---|---|
73020176 | JPX | |
55-065236 | May 1980 | JPX |
57-139512 | Aug 1982 | JPX |
58-036208 | Aug 1983 | JPX |
58-174433 | Oct 1983 | JPX |
61-275309 | Dec 1986 | JPX |
62-062909 | Mar 1987 | JPX |
62-078209 | Apr 1987 | JPX |
62-085012 | Apr 1987 | JPX |
63-145345 | Jun 1988 | JPX |
72757 | Feb 1981 | ROX |
71507 | Oct 1982 | ROX |
80053 | Nov 1982 | ROX |
83256 | Sep 1984 | ROX |
95683 | Oct 1988 | ROX |
Entry |
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Jul. 27, 1993 Search Report from PCT International Application No. PCT/US93/00508. |