Harrington's patent portable double chain screw hoisting machines and pulley blocks
Subtitle: the best in the world : fourteen sizes, 500 to 20,000 lbs., prices, $22.50 to $500 : one man can lift from 250 to 15,000 lbs according to the size of machine
By: Edwin Harrington & Son
Publisher: Edwin Harrington & Son
Published: 1880
Place of publication: Philadelphia
Language: eng
Number of pages: 26
Notes: Cover title.