NL301973A - - Google Patents

Info

Publication number
NL301973A
NL301973A NL301973DA NL301973A NL 301973 A NL301973 A NL 301973A NL 301973D A NL301973D A NL 301973DA NL 301973 A NL301973 A NL 301973A
Authority
NL
Netherlands
Application number
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.)
Publication of NL301973A publication Critical patent/NL301973A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Educational Technology (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)
  • Telephone Set Structure (AREA)
NL301973D 1928-06-01 NL301973A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2448527A GB301973A (en) 1928-06-01 1928-06-01 A telephone index

Publications (1)

Publication Number Publication Date
NL301973A true NL301973A (enrdf_load_stackoverflow)

Family

ID=10212414

Family Applications (1)

Application Number Title Priority Date Filing Date
NL301973D NL301973A (enrdf_load_stackoverflow) 1928-06-01

Country Status (2)

Country Link
GB (2) GB301973A (enrdf_load_stackoverflow)
NL (1) NL301973A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825571A (en) * 1987-05-26 1989-05-02 Oliver Jennings Retractable calendar
US5115757A (en) * 1991-03-06 1992-05-26 Mitsuhiko Abe Clip-carrying bookmarker

Also Published As

Publication number Publication date
GB301973A (en) 1928-12-13
GB1037070A (enrdf_load_stackoverflow)

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