SIC870477: Automatic Transportation Company's Various Special Models Of Automatic Units / Bridgeman Images

SIC870484: A Man Using An Automatic Transportation Company's Automatic Unit To Load And Unload Materials / Bridgeman Images

SIC870485: A Man Using An Automatic Transportation Company's Automatic Crane / Bridgeman Images

SIC870500: Western Electric Company's Model Number 143 Type Switch Hook For A Telephone / Bridgeman Images

SIC870513: Western Electric Company’s Floor And Table/Pedestal Type Carbon Transmitter Mounting / Bridgeman Images

SIC870517: Western Electric Company's Model Number 8-A Amplifier With Three Stages Of Amplification Tubes - Two Number 102-D and A Number 205-D Tubes / Bridgeman Images

SIC870519: Western Electric Company's Signal And Control System Showing A Model Number 6045-A Telephone Set In A Studio, As Well As A Code Number 534-A Transmitting Switching And Signaling Panel In A Radio Room / Bridgeman Images

SIC870520: Western Electric Company's Number 1-B Radio Transmitter / Bridgeman Images

SIC870522: Western Electric Company's Three-Unit Motor Generator / Bridgeman Images

SIC870525: Illustration Of A Home With Electrical Line Cables Connecting To Its Roof / Bridgeman Images

SIC870526: Operating Room Equipped With A Western Electric Company's 105-C Radio Telephone Equipment / Bridgeman Images

SIC870532: Western Electric Company's Power Amplifier Unit / Bridgeman Images

SIC870534: Western Electric Company's Speech Input Equipment- Model Numbers 8-A, 8-B And 5-B / Bridgeman Images

SIC870535: Western Electric Company's Radio Receiving Equipment - A Model Number 20-A Filter, Number 2-B Tuning Unit, And Number 4-D Radio Receiver / Bridgeman Images

SIC870538: Western Electric Company's Floor Type Condenser Transmitter As Well As A Table Model Number 394-W Transmitter / Bridgeman Images

SIC870543: Power Compartment In A Western Electric Company's Radio Transmitter / Bridgeman Images

SIC870549: Various Models Of Western Electric Company's Vacuum Tubes Used In Radio Telephone Broadcasting Equipment / Bridgeman Images

SIC870561: Westinghouse Electric And Manufacturing Company's Floodlight Equipment Lighting Up A Home For Sale In Forest Hills Subdivision In Cleveland, Ohio / Bridgeman Images

SIC870567: Westinghouse Electric And Manufacturing Company's Ten Inch Floodlights Type CAG-10 And Type CA-10 / Bridgeman Images

SIC870568: Westinghouse Electric And Manufacturing Company's Eight Inch Universal Floodlight Type E-8 / Bridgeman Images

SIC870570: Westinghouse Electric And Manufacturing Company's Twelve Inch Universal Floodlight Type I-12 / Bridgeman Images

SIC870571: Westinghouse Electric And Manufacturing Company's Sixteen Inch Searchlight / Bridgeman Images

SIC870577: Westinghouse Electric And Manufacturing Company's Underwater Floodlights For Pools / Bridgeman Images

SIC870583: Westinghouse Electric And Manufacturing Company's Sodium Vapor Lamps / Bridgeman Images

SIC870587: Westinghouse Electric And Manufacturing Company's Sodium Lighting Fixtures Being Used In Residential Areas During The Winter / Bridgeman Images

SIC870590: Westinghouse Electric And Manufacturing Company's Six-Thousand Lumen Sodium Vapor Lamp / Bridgeman Images

SIC870593: Major Equipment Company's G-30 Model Floodlighting Lamp / Bridgeman Images

SIC870594: Major Equipment Company's PS-30 Model Floodlighting Lamp / Bridgeman Images

SIC870595: Major Equipment Company's PS-30 Model Floodlighting Lamp / Bridgeman Images

SIC870603: Tower Of A Building Being Lit Up By Major Equipment Company's Floodlighting Units / Bridgeman Images

SIC870616: Westinghouse Electric & Manufacturing Company's Light Weight Suburban Car Belonging To The Interstate Public Service Company / Bridgeman Images

SIC870618: Westinghouse Electric & Manufacturing Company's Light Weight Low Floor City Car Belonging To The Saint Louis Public Service Company / Bridgeman Images

SIC870620: Westinghouse Electric & Manufacturing Company's City-Suburban Car Belonging To The Pacific Electric Railway / Bridgeman Images

SIC870623: Westinghouse Electric & Manufacturing Company's Multiple-Unit Subway Car Belonging To The Department Of City Transit Of Philadelphia / Bridgeman Images

SIC870630: Westinghouse Electric & Manufacturing Company's Light-Weight, Low-Floor City Car Belonging To Alabama Power Company / Bridgeman Images

SIC870632: Westinghouse Electric & Manufacturing Company's Light-Weight, Low-Floor Suburban Car Belonging To Westside Electric Street Railway Company / Bridgeman Images