Warning device for cooling water system for transformers
United States Patent 2713678
US Patent References:
/0859816.html
- - 0859816

Circuit controller for flow indicators
- - 1561813

Liquid level indicating means
- - 1978392

Sludge separator
- - 2248665

Liquid level responsive device
- - 2261495


Inventors:
Heitmand, Krokstrand Hans
Publication Date:
07/19/1955
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Assignee:
Christiania, Spigewerk
Primary Class:
340/608
Other Classes:
200/190
International Classes:
G01P13/00; H01F27/40; H01F27/00
US Patent References:
2368471Alarm system
2382516Liquid level follow-up device
Foreign References:
FR350277A