Patent US2267021 - WINDOW CONSTRUCTION

Patents

Inventors: Frank E. Glass, Frank E. Glass
Current U.S. Classification: 49/435

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Citing Patent	Filing date	Issue date	Original Assignee	Title
US4373295	12 Nov 1980	15 Feb 1983	A.M.S. Corporation	Resilient friction sash balance
US4464864	16 Jun 1983	14 Aug 1984	Schlegel Corporation	Weatherstripping in a double-hung window
US4916863	2 Jun 1989	17 Apr 1990	Schlegel Corporation	Jamb liner weatherseal