File-A0551-A0553--Electric Hoist -1907.07- (e976ca40-95e0-4458-8c4c-bc0fbd3d4aaf)
Summary
A0552 Pilot Electric Motor Drive and Brake
Keywords: Anthracite Industry; (NPS Focus Subject Thesaurus)
Tags
Date
1900 - 1910
Source
National Park Sevice
Copyright info
public domain