A hydraulic assist for a manual skyline lock
By: Cleveland J. Biller.
Contributors: Northeastern Forest Experiment Station (Radnor, Pa.); United States. Forest Service.
Series: Research note NE -- 247.; 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.