|
GB0009936D0
|
|
Metal detector
|
|
EP0058076A2
|
|
Metal detection apparatus
|
|
US4283680A
|
|
Electrical bridge balancing circuit
|
|
GB2025630A
|
|
Electrical bridge circuit with compensation for long-term drift
|
|
GB1370233A
|
|
Electrical sorting apparatus
|
|
GB1109231A
|
|
Improvements in and relating to photo-electric equipment
|
|
GB1032826A
|
|
Improvements in or relating to weighing apparatus
|
|
US3037165A
|
|
Electrical indicating measuring or control apparatus and the like
|
|
DE1170665B
|
|
Electrical display, measuring and control device
|
|
GB895832A
|
|
Improvements in and relating to electrical indicating, measuring or control apparatus and the like
|
|
GB824841A
|
|
Improvements in and relating to apparatus for the detecting, testing, or examination of articles
|
|
CA645832A
|
|
Electrical indicating measuring or control apparatus
|
