Pool systems and methods for making and using same - Lan, Chao Long (2019)
Keywords: BUILDING; BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; FENCING; FIXED CONSTRUCTIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MASTS; SWIMMING OR SPLASH BATHS OR POOLS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TENTS OR CANOPIES, IN GENERAL