A book having two bindings with multiple pages and two covers comprises a single sheet which is folded in an accordion fashion. The bindings are located at the leftmost and rightmost sides of the book while fasteners associated with each binding allow the book to be opened from either side.
申请公布号
US4932679(A)
申请公布日期
1990.06.12
申请号
US19890367199
申请日期
1989.06.16
申请人
BECKER-MAYER ASSOCIATES
发明人
MAYER, ANDREW S.;BECKER, JAMES F.;WITT, RICHARD H.