NL7706999A - SAFE PLAYBACK AND RESPONTION DEVICE. - Google Patents

SAFE PLAYBACK AND RESPONTION DEVICE.

Info

Publication number
NL7706999A
NL7706999A NL7706999A NL7706999A NL7706999A NL 7706999 A NL7706999 A NL 7706999A NL 7706999 A NL7706999 A NL 7706999A NL 7706999 A NL7706999 A NL 7706999A NL 7706999 A NL7706999 A NL 7706999A
Authority
NL
Netherlands
Prior art keywords
respontion
safe playback
playback
safe
respontion device
Prior art date
Application number
NL7706999A
Other languages
Dutch (nl)
Original Assignee
Freeman Michael James
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Freeman Michael James filed Critical Freeman Michael James
Publication of NL7706999A publication Critical patent/NL7706999A/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63F—CARD, BOARD, OR ROULETTE GAMES; INDOOR GAMES USING SMALL MOVING PLAYING BODIES; VIDEO GAMES; GAMES NOT OTHERWISE PROVIDED FOR
    • A63F9/00—Games not otherwise provided for
    • A63F9/18—Question-and-answer games
    • A63F9/183—Question-and-answer games electric
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07F—COIN-FREED OR LIKE APPARATUS
    • G07F17/00—Coin-freed apparatus for hiring articles; Coin-freed facilities or services
    • G07F17/32—Coin-freed apparatus for hiring articles; Coin-freed facilities or services for games, toys, sports, or amusements
    • 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
    • G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
    • G09B7/06—Electrically-operated teaching apparatus or devices working with questions and answers of the multiple-choice answer-type, i.e. where a given question is provided with a series of answers and a choice has to be made from the answers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Electrically Operated Instructional Devices (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
NL7706999A 1976-06-24 1977-06-24 SAFE PLAYBACK AND RESPONTION DEVICE. NL7706999A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69945376A 1976-06-24 1976-06-24

Publications (1)

Publication Number Publication Date
NL7706999A true NL7706999A (en) 1977-12-28

Family

ID=24809399

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7706999A NL7706999A (en) 1976-06-24 1977-06-24 SAFE PLAYBACK AND RESPONTION DEVICE.

Country Status (2)

Country Link
JP (1) JPS531511A (en)
NL (1) NL7706999A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5854199Y2 (en) * 1982-04-30 1983-12-09 ベツクマン インスツルメンツ インコ−ポレ−テツド Centrifuge tube holder assembly
JPH0713807Y2 (en) * 1989-06-09 1995-04-05 日立工機株式会社 Bucket for centrifuge

Also Published As

Publication number Publication date
JPS531511A (en) 1978-01-09

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Legal Events

Date Code Title Description
BV The patent application has lapsed