Dr. Zumwalt graduated from the Loma Linda University School of Medicine in 1982. He works in San Francisco, CA and specializes in Internal Medicine. Dr. Zumwalt is affiliated with California Pacific Medical Center, California Pacific Medical Center California Campus and California Pacific Medical Center Davies Campus.
Donald A. Zumwalt - San Fernando CA Jean M. Zumwalt - San Fernando CA
International Classification:
E06C 716
US Classification:
182120
Abstract:
A stepladder platform which can be installed onto the steps of a stepladder to provide an enlarged standing area. A restraining means at the rear engages the stepladder step to prevent forward movement and tilting. A restraining means at the front prevents rearward movement. Also a latch device can be used to prevent tilting from the front. The platform is constructed to support the weight of a person standing on it.