Membership
Tour
Register
Log in
John F. Langenbach
Follow
Person
St. Louis, MO, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Security door
Patent number
4,679,353
Issue date
Jul 14, 1987
George Langenbach
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information
Patent Grant
Water powered gutter and downspout cleaning apparatus
Patent number
4,602,460
Issue date
Jul 29, 1986
Langenbach; John F.
John F. Langenbach
E04 - BUILDING
Information
Patent Grant
Shoring apparatus and method
Patent number
4,563,110
Issue date
Jan 7, 1986
New T'ings Inc.
George F. Langenbach
E04 - BUILDING