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This tape shows Dr. Leonard Ring demonstrating situations where workers can't bend their knees while lifting.

Film Library/Greater Los Angeles Safety Council, 600 Wilshire Blvd., No. 1263, Los Angeles, CA 90017, Phone: (213)385-6461, Toll-free: 800-421-9585, Fax: (213)385-8405, URL:

Available on Running time 18 minutes.

Cast and Crew

Safety Education, Back Disorders

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