Number | Date | Country | Kind |
---|---|---|---|
EE 2278 | Nov 1974 | HU |
This is a continuation-in-part application of application Ser. No. 630,762 filed on Nov. 11, 1975, now abandoned.
Number | Name | Date | Kind |
---|---|---|---|
2767174 | Katz et al. | Oct 1956 | |
3371090 | Johnson | Feb 1968 | |
3493572 | Johnson | Feb 1970 | |
3793323 | Seng et al. | Feb 1974 | |
3819616 | Seng et al. | Jun 1974 | |
3840600 | Eberle | Oct 1974 | |
3881009 | Seng et al. | Apr 1975 |
Number | Date | Country |
---|---|---|
1,058,047 | Feb 1967 | UK |
Number | Date | Country | |
---|---|---|---|
Parent | 630762 | Nov 1975 |