Donald A Zumwalt from Chatsworth, CA

Us Patents

Stepladder Platform
view source
US Patent:

50566202, Oct 15, 1991
Filed:

Oct 17, 1990
Appl. No.:

7/599059
Inventors:

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.

Medicine Doctors

Donald E. Zumwalt

view source

Specialties:

Internal Medicine

Education:

Medical School
Loma Linda University School of Medicine
Graduated: 1982

Conditions:

Bacterial Pneumonia
Chronic Renal Disease
Hemorrhagic stroke
Ischemic Stroke
Pulmonary Embolism

Description:

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.

Name / Title

Company / Classification

Phones & Addresses

Donald Zumwalt
Board of Directors

Marine Animal Rescue Rehabilitation & Release Into The Natural Environment Inc
Membership Organizations, Nec, Nsk

3601 S Gaffey St, San Pedro, CA 90731
PO Box 427, San Pedro, CA 90733

Classmates

Oswego High School, Osweg...

view source

Graduates:

Don Zumwalt (1992-1996),
Rae Ellyn Wessels (1968-1971),
Rita Zumwalt (1981-1985),
Holly Carden (1980-1984),
Phillip Hartness (1990-1994)

Youtube

What Killed Zumwalt Destroyers?

In this video we explore why over 90% of the Zumwalt class destroyers ...

Duration:

8m 41s

The Real Reason Why The USS Zumwalt Destroyer...

Why the USS Zumwalt is a big failure The US Navy takes great pride in ...

Duration:

11m 34s

The World's Most Powerful Ship - USS Zumwalt ...

The USS Zumwalt is the United States badass destroyer warship. Watch a...

Duration:

11m 13s

Life Inside Massive $4.5 Billion Stealth Dest...

One of the super expensive products from the US Navy is the USS Zumwal...

Duration:

8m 49s

Admiral Elmo R. Zumwalt Jr. (documentary)

Elmo Russell "Bud" Zumwalt Jr. (November 29, 1920 January 2, 2000) wa...

Duration:

14m 9s

Donald A Zumwalt

Donald Zumwalt Phones & Addresses