Electric machinery
notation: TK2000-TK2799
type: Concept

Electric rheostats
notation: TK2851
type: Concept
related: Electric controllers

Automatic control
type: Concept

Electric controllers
broader: Automatic control
broader: Electric machinery
created: 1986-02-11T00:00:00
member: collection LCSH General
member: collection LCSHAuthorizedHeadings
member: collection SubdivideGeographicalIndirect
alternative label: Controllers, Electric
notation: TF930
notation: TK2851
related: Electric rheostats
type: Concept
in scheme: lcsh

Automatic control
notation: TJ212-TJ225
type: Concept