Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D9/00—Bookmarkers; Spot indicators; Devices for holding books open; Leaf turners
  • B42D9/008—Devices for indicating a spot on a sheet
• • G—PHYSICS
  • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
  • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
  • G09B29/00—Maps; Plans; Charts; Diagrams, e.g. route diagram
  • G09B29/10—Map spot or coordinate position indicators; Map reading aids

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)
• Mathematical Physics (AREA)
• Business, Economics & Management (AREA)
• Educational Administration (AREA)
• Educational Technology (AREA)
• General Physics & Mathematics (AREA)
• Instructional Devices (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4214737

Family Applications (1)

Country Status (2)

• 1960
  • 1960-02-13 CH CH162260A patent/CH364918A/fr unknown
• 1966
  • 1966-07-29 BE BE684837D patent/BE684837A/xx unknown

Also Published As

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