Strainer for cellar drains
United States Patent 2433423
US Patent References:
Sink strainer
- - 1706000
Drain strainer
- - 1950817
Device for partially obstructing pipes
- - 2281448
Sink strainer
- - 1706000
Drain strainer
- - 1950817
Device for partially obstructing pipes
- - 2281448
Inventors:
Broadman, Ralph H.
Publication Date:
12/30/1947
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Assignee:
Broadman, Ralph H.
Primary Class:
Other Classes:
210/483, 210/451
International Classes:
E03F5/04
Foreign References:
| GB189521703A |