US2422714A
(en )
1947-06-24
Miniature electric meter
GB929582A
(enrdf_load_stackoverflow )
US4625819A
(en )
1986-12-02
Vertically stable friction-free microbalance
US2367950A
(en )
1945-01-23
Electrical measuring instrument
US2978640A
(en )
1961-04-04
D arsonval-movement assembly
GB994365A
(enrdf_load_stackoverflow )
US3277370A
(en )
1966-10-04
Taut band suspended instrument movement with shock resistant longitudinal movement stop
US2110680A
(en )
1938-03-08
Electrical instrument
GB940680A
(enrdf_load_stackoverflow )
GB456988A
(enrdf_load_stackoverflow )
US3275936A
(en )
1966-09-27
Electric meter including pivoted mag-
net rotor surrounded by continuous
pole faces
GB862420A
(enrdf_load_stackoverflow )
US2871449A
(en )
1959-01-27
Magnetic restoring force suspension galvanometer
US2515375A
(en )
1950-07-18
Torque-restoring device for electrical instruments
US2900211A
(en )
1959-08-18
Magnetic suspension with flexibility
US3490043A
(en )
1970-01-13
Stacked construction electric meter
US2333991A
(en )
1943-11-09
Electrical measuring instrument
US3052847A
(en )
1962-09-04
lender
GB550649A
(enrdf_load_stackoverflow )
US520129A
(en )
1894-05-22
Electric-current indicator
US3317836A
(en )
1967-05-02
Electrical indicating instruments for use with progressively varied outputs
GB863617A
(enrdf_load_stackoverflow )
US3452606A
(en )
1969-07-01
Speedometer
US3119962A
(en )
1964-01-28
lender etal
US3278848A
(en )
1966-10-11
Core magnet measuring movement with spring supported core