E04F 11/108

Technology

Patent/Pub #	Title	Filing Date	Issue/Publication Date	Patent Owner
9890540	Floor or wall covering system with laying units which can be combined in a modular manner	Apr 26, 12	Feb 13, 18	Weitzer Holding GmbH
9593489	Tread for steel-pan stairways	Apr 28, 16	Mar 14, 17	PROGRESSIVE SAFETY SOLUTIONS, LLC
9121185	Prefabricated staircase and finishing arrangement and installation method therefor	Jun 19, 13	Sep 01, 15	Not available
8966859	Staircase and method for construction	Mar 05, 14	Mar 03, 15	Signature Companies
8707638	Staircase and method for construction	Apr 03, 12	Apr 29, 14	Signature Companies
6173540	Stair tread	Sep 08, 98	Jan 16, 01	Not available

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