INFLATABLE DAMS AND DAM UNITS
(INVENTORE: Daniel Cecil Edward Fish)
EMBANKEMENT DAM AND WATERPROOFING METHOD
(INVENTORE: Alberto Scuero)
COLLAPSABLE DAM
(INVENTORI: Kyozo Suga, Jinya Iizuka, Yoshiomi Tsuji)
STORM DRAINAGE UNDERFLOW DAM UNIT
(INVENTORE: Mark A. Stucks)
DAM WITH TRANSFORMABLE HYDROELECTRIC STATION
(INVENTORE: Francisco Atencio)
CASCADE DAM
(INVENTORE: Jerry R. Phillips)
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