A smoking article which delivers to a smoker during each puff a flowstream having a higher concentration of smoke during the first portion of the puff and a lower concentration of smoke during the remainder of the puff.
申请公布号
US4638820(A)
申请公布日期
1987.01.27
申请号
US19860825563
申请日期
1986.02.03
申请人
R. J. REYNOLDS TOBACCO COMPANY
发明人
ROBERTS, DONALD L.;ANGEL, ANTHONY L.;CLARK, DOUGLAS C.;CLEARMAN, JACK F.;SINK, T. STEPHEN
