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公开(公告)号：US3306858A
公开(公告)日：1967-02-28
申请号：US46482165
申请日：1965-06-17
Applicant: ECONOMICS LAB
Inventor： OBERLE THOMAS M
CPC classification number: C11D1/66 , C11D3/3953 , C11D17/0039
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公开(公告)号：US3166513A
公开(公告)日：1965-01-19
申请号：US27051863
申请日：1963-04-04
Applicant: ECONOMICS LAB
Inventor： MIZUNO WILLIAM G , OBERLE THOMAS M
CPC classification number: C11D7/14 , C11D3/3958
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