Shelfmark

Mar.4

Maker

Patent Office; Marconi Instruments Limited

Subjects

Electric resistance.; Wheatstone bridge; Marconi Instruments Limited

Title

Improvements in or relating to wheatstone bridge resistance measuring circuits

Description

Provisional Specification, followed by Complete Specification, of Marconi Instruments Limited for their invention relating to improvements in wheatstone bridge resistance measuring circuits, and particularly to bridge circuits of the kind in which at least one arm of the bridge includes the anode-cathode space of a thermionic valve. Diagram included at back of document.

Earliest Date

1948

Latest Date

1950

Pages

5

Address

25, Southampton Buildings, London, W.C. 2

Other Makers

Cat no

635,674

Contents List

Hardback

Prices

Yes

Index

Illustrations

General Ref