| Patents for B42D 9 - Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners (3,146) |
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| 06/05/1991 | CN2078231U 折叠书架 Folding Bookcase |
| 05/22/1991 | EP0427898A1 Reading stand with page turning mechanism |
| 05/21/1991 | US5016559 Bookmark having integral pencil holder |
| 05/08/1991 | DE3930276C1 Technical data hand-book - has coloured identification markers extending over edges of pages |
| 04/30/1991 | US5011189 Publication reference-aid system apparatus therefor |
| 04/09/1991 | US5005870 Process and apparatus for industrial bookbinding and binding thereby obtained |
| 04/09/1991 | US5005869 Device to display cover and pages of a document |
| 03/20/1991 | EP0157877B1 Automatically controlled apparatus for the turning of pages |
| 03/13/1991 | CN2072903U Automatic music score |
| 03/13/1991 | CN2072902U Reading clip |
| 02/26/1991 | US4995184 Passbook page turning mechanism |
| 02/06/1991 | CN2070675U Vertical filing appliance |
| 02/06/1991 | CN2070672U Double purpose health pen box |
| 01/29/1991 | US4987690 Convertible swing arm and desk top copy holder |
| 01/23/1991 | CN2069785U Device for automatic turning music book or one-volume edition |
| 01/15/1991 | US4984529 Educational method, reusable educational bookmarking device and writing instrument clip |
| 01/10/1991 | WO1991000184A1 Educational method, reusable educational bookmarking device and writing instrument clip |
| 01/09/1991 | CN2068909U Simple book holder |
| 01/09/1991 | CN2068770U Pencil box with book folder |
| 11/22/1990 | EP0398516A2 Passbook page turning mechanism |
| 11/22/1990 | DE3916223A1 Book mark made of plastics film - uses film with two electrostatic charges of opposite polarity |
| 11/20/1990 | US4970984 Memo marking strip |
| 11/13/1990 | CA1276192C Automatic page-turning device |
| 11/07/1990 | CN2065141U Electromagnetic foot leaf-turning rack |
| 11/07/1990 | CN2065012U Portable reaidng rack |
| 10/10/1990 | CN2063481U Reading or writing clip |
| 10/04/1990 | WO1990011191A1 An auxiliary device for leafing through papers |
| 09/19/1990 | CN1045342A Reading and writing stand for student |
| 09/12/1990 | CN2061896U Champ for reading |
| 09/11/1990 | CA1273789A1 Repositionable directional markers |
| 09/07/1990 | WO1990009892A1 Book clip |
| 08/23/1990 | DE3905502A1 Bookmark with a printed work |
| 08/22/1990 | CN2060637U Multi-purpose pencilcase |
| 08/08/1990 | EP0381137A2 Passbook printing apparatus and page turning method |
| 07/17/1990 | US4942482 Automatic page-turning device |
| 07/11/1990 | CN2059050U Book holder stationary box |
| 06/26/1990 | US4936034 Reading stand with page turning mechanism |
| 06/19/1990 | US4934304 Novelty clip |
| 06/12/1990 | US4932680 Book clip |
| 05/29/1990 | US4928361 Paper clip |
| 05/03/1990 | DE3836615A1 Marking device |
| 04/25/1990 | CN2056327U 盒式阅读器 Cassette reader |
| 04/17/1990 | US4916839 Page turning apparatus |
| 04/04/1990 | CN2055445U Binding and lay out type multifunction bookclip |
| 03/29/1990 | DE3831342A1 Page-number indicator |
| 03/20/1990 | US4908912 Retainer for maintaining a book in an open position |
| 02/28/1990 | CN2053459U Combined reading-rack |
| 02/21/1990 | CN2053048U Book pressing spring for multipurpose stationery box |
| 02/20/1990 | US4901665 Line mark book mark |
| 02/07/1990 | CN2052345U Ornamental book holder |
| 02/06/1990 | US4898115 Line identifying bookmark |
| 01/24/1990 | EP0351743A2 Sheet-turning device |
| 12/20/1989 | CN2049597U Device for holding book |
| 11/28/1989 | US4883553 Pad forming method |
| 11/28/1989 | US4882969 Page turning device |
| 11/15/1989 | CN2047505U Stationery case used as a reading stand |
| 11/08/1989 | CN2047222U Reading-rack automatic page-turning device |
| 11/01/1989 | CN2046807U Multifunction learning assistor |
| 10/11/1989 | CN2045696U Convenient book folder |
| 10/11/1989 | CN2045695U Book folder |
| 09/28/1989 | DE3808429A1 Method for photographing and recording a multi-page printed work |
| 09/26/1989 | US4870258 Page turning apparatus |
| 08/29/1989 | US4861073 Newspaper holder |
| 08/17/1989 | DE3803622A1 Device for location of image elements on X-ray films |
| 08/10/1989 | WO1989007051A1 System for opening books and marking pages |
| 08/08/1989 | US4854048 Template for driver's dailey log book |
| 07/27/1989 | WO1989006602A1 Reference-aid interfacing system apparatus for periodicals |
| 07/12/1989 | EP0323764A1 Method and means for industrial binding |
| 07/06/1989 | DE3744374A1 Aid for turning/leafing through pages |
| 06/27/1989 | US4842919 Pad forming method |
| 05/23/1989 | US4832373 Selective data blocking overlay |
| 05/03/1989 | EP0314116A2 Desk top copy holder |
| 04/25/1989 | US4824141 Page holder for books |
| 04/12/1989 | CN2035705U Vertical reading clamp |
| 03/22/1989 | CN2034534U Automatic absorbing water sponge bowl |
| 03/15/1989 | EP0307010A2 Page turning apparatus |
| 03/08/1989 | CN2033743U Music stand with a simulated hand for turning pages |
| 03/08/1989 | CN2033742U Folding book clip |
| 03/08/1989 | CN2033741U Book holder for reading |
| 03/02/1989 | DE3820626A1 Marking apparatus |
| 03/02/1989 | DE3727762A1 Apparatus for marking |
| 03/01/1989 | CN2033340U Leafing device |
| 03/01/1989 | CN2033211U Justable watching shelf |
| 01/04/1989 | CN2030143U Elastic device for holding books open |
| 12/27/1988 | US4793758 Cover for binding sheets |
| 11/09/1988 | CN88200291U Convenient reading shelf |
| 11/01/1988 | US4780977 Page turning apparatus |
| 10/18/1988 | US4778201 Automatic bookmarker band |
| 10/18/1988 | US4777902 Information retrieval device |
| 10/12/1988 | EP0286545A2 Book holder |
| 10/06/1988 | WO1988007451A1 Page fixing device for reading |
| 09/27/1988 | US4773297 Page turning device |
| 09/21/1988 | CN87210316U Convenient reading stand |
| 09/15/1988 | DE3718807A1 Bookmark |
| 09/15/1988 | DE3718806A1 Marking apparatus |
| 09/14/1988 | CN87215259U Multiple purpose comhined page counter |
| 09/07/1988 | CN88200457U Rack for reading and writing with health protection function |
| 09/07/1988 | CN87213483U Rack for reading and writing able to adjust its angle |
| 08/30/1988 | US4767094 Book holder |
| 08/23/1988 | US4765652 Permanent book mark |