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Class Information
Number: 248/446
Name: Supports > Easel; book, copy or music score holder > With book leveling means
Description: Device for supporting a book in open position and including means for maintaining the two halves of the open face of the book in substantially the same horizontal plane, regardless of the relative thickness of the two halves of the book.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6499766 |
Media folder improvements |
Dec. 31, 2002 |
| 6471174 |
Graphic arts station |
Oct. 29, 2002 |
| 6170877 |
Page holder |
Jan. 9, 2001 |
| 6089609 |
Check clip |
Jul. 18, 2000 |
| 5129616 |
Book support for supine or seated readers |
Jul. 14, 1992 |
| 4998703 |
Portable illuminated bookholder and lectern |
Mar. 12, 1991 |
| 4976408 |
Device for microfilming bound volumes using a tiltable book cradle |
Dec. 11, 1990 |
| 4925144 |
Portable bookholder |
May. 15, 1990 |
| 4896252 |
Bookholder |
Jan. 23, 1990 |
| 4771977 |
Book support |
Sep. 20, 1988 |
| 4596372 |
Stand for supporting matter to be read |
Jun. 24, 1986 |
| 4300052 |
Apparatus for exposing a series of plates to radiation |
Nov. 10, 1981 |
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