GB627327A
(enExample )
1900-01-01
US2427571A
(en )
1947-09-16
Magnetic structure for electrical
US2400308A
(en )
1946-05-14
Electric ratiometer
US2725529A
(en )
1955-11-29
Electrical instruments
US3144603A
(en )
1964-08-11
Long scale moving
GB190517093A
(en )
1906-07-26
Improvements relating to Magnets and Solenoids for Electrical Measuring Apparatus.
US2300814A
(en )
1942-11-03
Indicating meter, particularly for radio navigational purposes
US716372A
(en )
1902-12-23
Induction alternate-current meter.
US1727509A
(en )
1929-09-10
Apparatus for controlling the registration curve of electric meters
US1025020A
(en )
1912-04-30
Electromagnet.
GB452440A
(en )
1936-08-21
Improvements in and relating to electrical measuring instruments and relays
US1786157A
(en )
1930-12-23
Induction meter
GB267910A
(en )
1927-08-18
Improvements in or relating to electric resistance measuring instruments
GB808499A
(en )
1959-02-04
Three-phase four-wire induction meter
GB107376A
(en )
1918-04-11
Improvements in or relating to the Testing of Iron Materials.
GB166317A
(en )
1921-06-30
Electromagnetic induction micrometers
GB348399A
(en )
1931-05-14
Means for indicating the polarity at any time of a horseshoeshaped electromagnet
GB191206647A
(en )
1912-08-15
Improvements in or relating to Alternating Current Electricity Meters.
GB357273A
(en )
1931-09-24
Improvements in and relating to a.c. induction electricity meters
GB971411A
(enExample )
1900-01-01
GB611205A
(en )
1948-10-27
Improvements relating to magnetic field responsive devices
GB392072A
(enExample )
1900-01-01
GB190505827A
(en )
1905-07-20
Improvements in Field-systems for Continuous Current Electric Meters
GB191019093A
(en )
1911-04-06
Improvements in Electrical Measuring Instruments.
GB574894A
(en )
1946-01-24
Improvements in or relating to damping apparatus for electrical instruments, meters and relays