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公开(公告)号：CA378378A
公开(公告)日：1938-12-20
申请号：CA378378D
Applicant: STANDARD OIL DEV CO
Inventor： HOLTZCLAW JOHN B , WINNING CARL
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公开(公告)号：CA420693A
公开(公告)日：1944-06-06
申请号：CA420693D
Applicant: STANDARD OIL DEV CO
Inventor： SERNIUK GEORGE E , HOLTZCLAW JOHN B
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公开(公告)号：CA448018A
公开(公告)日：1948-04-20
申请号：CA448018D
Applicant: STANDARD OIL DEV CO
Inventor： ZIMMER JOHN C , HOLTZCLAW JOHN B
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