Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
  • E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
  • E04H3/08—Hospitals, infirmaries, or the like; Schools; Prisons
• • 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
  • G09B5/00—Electrically-operated educational appliances
  • G09B5/06—Electrically-operated educational appliances with both visual and audible presentation of the material to be studied

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Health & Medical Sciences (AREA)
• Public Health (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Business, Economics & Management (AREA)
• Physics & Mathematics (AREA)
• Educational Administration (AREA)
• Educational Technology (AREA)
• General Physics & Mathematics (AREA)
• Theoretical Computer Science (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=19722264

Family Applications (1)

Country Status (1)

• 1952
  • 1952-02-06 LU LU31233D patent/LU31233A1/xx unknown

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