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公开(公告)号:US3472164A
公开(公告)日:1969-10-14
申请号:US3472164D
申请日:1967-06-07
Applicant: COLUMBIA RIBBON CARBON MFG
Inventor: NEWMAN DOUGLAS A , TRECKER WILLIAM E
CPC classification number: B41C1/1091
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2.
公开(公告)号:US3472162A
公开(公告)日:1969-10-14
申请号:US3472162D
申请日:1966-07-29
Applicant: COLUMBIA RIBBON CARBON MFG
Inventor: NEWMAN DOUGLAS A , TRECKER WILLIAM E
CPC classification number: B41N1/14
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