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1.发明授权Automatic adjustable electric control of mineral contents for blowdown in a boiler 失效用于锅炉排污的矿物质含量的自动调节电控制
公开(公告)号：US3269364A
公开(公告)日：1966-08-30
申请号：US34907764
申请日：1964-03-03
Applicant: HIGGINS BRADLEY C
Inventor： HIGGINS BRADLEY C
CPC classification number: F22B1/30 , F22B37/42 , Y10T137/7306
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公开(公告)号：US3327690A
公开(公告)日：1967-06-27
申请号：US55978366
申请日：1966-06-23
Applicant: HIGGINS BRADLEY C
Inventor： HIGGINS BRADLEY C
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