BE525720A - - Google Patents

Info

Publication number
BE525720A
BE525720A BE525720DA BE525720A BE 525720 A BE525720 A BE 525720A BE 525720D A BE525720D A BE 525720DA BE 525720 A BE525720 A BE 525720A
Authority
BE
Belgium
Prior art keywords
hopper
crown
fuel
refractory
nozzle
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE525720A publication Critical patent/BE525720A/fr

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00Electrically-operated educational appliances
    • G09B5/06Electrically-operated educational appliances with both visual and audible presentation of the material to be studied
    • G09B5/067Combinations of audio and projected visual presentation, e.g. film, slides

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
BE525720D BE525720A (el)

Publications (1)

Publication Number Publication Date
BE525720A true BE525720A (el)

Family

ID=159920

Family Applications (1)

Application Number Title Priority Date Filing Date
BE525720D BE525720A (el)

Country Status (1)

Country Link
BE (1) BE525720A (el)

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