P
PatentIndex
Search
Landscape
Sign in
Inventor
CASTLEMAN CORDELL V
5 patents
⚠️ This page may combine multiple inventors who share the name “CASTLEMAN CORDELL V”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MAGNETIC CONTROLS CO
3 patents
US4046970A
Sep 6, 1977
Ringing detector for telephone circuits
MAGNETIC CONTROLS CO
6 citations
70
US4139740A
Feb 13, 1979
Flash-wink generating circuit
MAGNETIC CONTROLS CO
3 citations
59
US4082920A
Apr 4, 1978
Telephone testing equipment
MAGNETIC CONTROLS CO
1 citations
48
CASTLEMAN CORDELL V
2 patents
US4654575A
Mar 31, 1987
Ripple detecting polarity indicator for battery charger
CASTLEMAN CORDELL V
25 citations
87
US4647834A
Mar 3, 1987
Battery charger
CASTLEMAN CORDELL V
28 citations
87