Fire protection automatic sprinkler system
United States Patent 2558175
US Patent References:
/1246798.html
- - 1246798

/1287972.html
- - 1287972

Liquid flow regulating valve
- - 1946734


Inventors:
Gieseler, Russell W.
Publication Date:
06/26/1951
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Assignee:
Gieseler, Russell W.
Primary Class:
169/5
Other Classes:
169/19
International Classes:
A62C35/60; A62C35/58