Variable safe separation timer
United States Patent 2990507
US Patent References:
/0898848.html
- - 0898848
Device for measuring displacements with carrier frequency
- - 2297251
Induction generator starting gear
- - 2445435
/0898848.html
- - 0898848
Device for measuring displacements with carrier frequency
- - 2297251
Induction generator starting gear
- - 2445435
Inventors:
Nuffer, Harold D.
Publication Date:
06/27/1961
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Assignee:
Nuffer, Harold D.
Primary Class:
Other Classes:
310/15, 322/49
International Classes:
H01H7/12; H01H7/00