A cigarette filter contains a beaded, activated carbon of a spherical form having a diameter within the range of approximately 0.20 millimeter to 0.70 millimeter.
申请公布号
ZA200405435(B)
申请公布日期
2006.06.28
申请号
ZA20040005435
申请日期
2004.07.08
申请人
PHILIP MORRIS PRODUCTS S.A.
发明人
PAINE, JOHN, B, III.;FOURNIER, JAY, A.;ZHAOHUA LUAN;GEE, DIANE, L.;ZUYIN YANG;THOMAS, CHARLES, E, JR.;SHUZHONG ZHUANG;KOLLER, KENT, B.;SHERWOOD, TIMOTHY, S.;NEPOMUCENO, JOSE, M, G.
