hydraulic assist for a manual skyline lock
By: Cleveland J. Biller.
Contributors: United States. Forest Service.; Northeastern Forest Experiment Station (Radnor, Pa.)
Series: USDA Forest Service research note NE ; 247; USDA Forest Service research note NE -- 247.
Publisher: Dept. of Agriculture, Forest Service, North eastern Forest Experiment Station
Published: 1977
Place of publication: Upper Darby, Pa
Language: eng
Subjects: Logging -- Machinery.
Notes: Caption title.