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George F. Langenbach Jr.
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Crestwood, MO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Security door lock
Patent number
4,844,521
Issue date
Jul 4, 1989
George Langenbach
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Patent Grant
Security door
Patent number
4,679,353
Issue date
Jul 14, 1987
George Langenbach
E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
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Patent Grant
Apparatus for and method of shoring a structure
Patent number
4,678,373
Issue date
Jul 7, 1987
Perma-Jack Company
George F. Langenbach
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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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