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公开(公告)号：US1657779A
公开(公告)日：1928-01-31
申请号：US11149526
申请日：1926-05-25
Applicant: STANDARD OIL CO CALIFORNIA
Inventor： BLY EDWIN P
CPC classification number: B08B9/023 , B08B7/04 , Y10T29/4506
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公开(公告)号：US1647499A
公开(公告)日：1927-11-01
申请号：US13676326
申请日：1926-09-21
Applicant: STANDARD OIL CO CALIFORNIA
Inventor： BLY EDWIN P
IPC: B08B9/02
CPC classification number: B08B9/023 , Y10S414/123 , Y10T29/4506 , Y10T29/4567
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