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Twenthieth Century Companies, Inc.
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Wheeling, IL, US
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Patents Grants
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Patent Grant
Adjustable tubular wall structure for connectors and the like
Patent number
4,927,191
Issue date
May 22, 1990
Twenthieth Century Companies, Inc.
Erwin F. Mikol
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...