A tripod mount to aid in lifting heavy objects
By: Howard L. Gary.
Contributors: Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.).
Series: USDA Forest Service research note RM ; 305; USDA Forest Service research note RM -- 305.
Publisher: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
Published: 1976
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Hoisting machinery.; Tripods -- Design and construction.