Patent US4828235A successfully refreshed from Google Patents.
Gebrueder Boehler and Co AG
Gebrueder
| Patent No. |
Title |
Status |
Filing Date |
Grant Date |
Claims |
Actions |
|
US4000984A
|
High silicon-containing austenitic-iron-chromium-nickel all… |
Expired / Lapsed
|
1975-07-14 |
1977-01-04 |
5 |
Details
|
|
US3834947A
|
Two-stage process of surface-hardening workpieces of harden… |
Expired / Lapsed
|
1971-09-21 |
1974-09-10 |
0 |
Details
|
|
US3421890A
|
Fused corrosion resistant cobalt-chromium alloy |
Expired / Lapsed
|
1966-08-29 |
1969-01-14 |
0 |
Details
|
|
US3307939A
|
Corrosion-resisting cobalt-chromium-tungsten alloys |
Expired / Lapsed
|
1964-06-02 |
1967-03-07 |
2 |
Details
|
|
DE860692C
|
Immersion vibrator for pourable or pulpy masses |
Expired / Lapsed
|
1950-11-16 |
1952-12-22 |
0 |
Details
|
|
US2156298A
|
Welded article |
Expired / Lapsed
|
1937-03-16 |
1939-05-02 |
0 |
Details
|