Temperature alarm system
United States Patent 2452942
US Patent References:
/0645588.html
- - 0645588

/0880136.html
- - 0880136

/1224385.html
- - 1224385

Hot bearing alarm system
- - 2339436

Remote indication system
- - 2408660


Inventors:
Kenneth, Lord. M.
Warren, Glenn E.
Publication Date:
11/02/1948
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Assignee:
PROTECT O FARM COMPANY
Primary Class:
340/524
Other Classes:
340/594, 340/590, 340/514, 324/417
International Classes:
G08B17/06
Foreign References:
GB189513647A
GB190428920A
GB436755A