Patent US2932003A successfully refreshed from Google Patents.
American Smelting and Refining Co
American S
| Patent No. |
Title |
Status |
Filing Date |
Grant Date |
Claims |
Actions |
|
US2290286A
|
Apparatus for cooling metal molds |
Expired / Lapsed
|
1940-05-10 |
1942-07-21 |
0 |
Details
|
|
US2116207A
|
Method of casting copper |
Expired / Lapsed
|
1936-11-13 |
1938-05-03 |
0 |
Details
|
|
US1995651A
|
High temperature filtering |
Expired / Lapsed
|
1932-07-29 |
1935-03-26 |
0 |
Details
|
|
US1292162A
|
Process and apparatus for removing accretions from mechanic… |
Expired / Lapsed
|
1918-05-21 |
1919-01-21 |
0 |
Details
|