Number | Date | Country | Kind |
---|---|---|---|
4113807 | Apr 1991 | DEX |
Number | Name | Date | Kind |
---|---|---|---|
2889574 | Thielen et al. | Jun 1959 |
Number | Date | Country |
---|---|---|
0144110 | Jun 1985 | EPX |
1839007 | Apr 1961 | DEX |
1839808 | Aug 1961 | DEX |
1132464 | Jun 1962 | DEX |
1136605 | Sep 1962 | DEX |
1162714 | Feb 1964 | DEX |
1775309 | Apr 1972 | DEX |
2330922 | Feb 1974 | DEX |
8810200 | Nov 1988 | DEX |
9105198 | Jun 1991 | DEX |
1422912 | May 1966 | FRX |
1571342 | Jul 1980 | GBX |
2202005 | Sep 1988 | GBX |
Entry |
---|
Deutsches Patentamt (German Search Report) (Citing references aa, ab and ac above). |
European Patent Office Search Report (Citing references ad, ae, af, ag, above, aj, and ba, bb, bc and bd, below E. Mayer, Mechanical Seals, Chapter 9, pp. 171-173 (1974). |