DE151466C - - Google Patents

Info

Publication number
DE151466C
DE151466C DE1903151466D DE151466DA DE151466C DE 151466 C DE151466 C DE 151466C DE 1903151466 D DE1903151466 D DE 1903151466D DE 151466D A DE151466D A DE 151466DA DE 151466 C DE151466 C DE 151466C
Authority
DE
Germany
Prior art keywords
microphone
circuit
contact
time
lever
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE1903151466D
Other languages
German (de)
English (en)
Filing date
Publication of DE151466C publication Critical patent/DE151466C/de
Application filed filed Critical
Priority to AT20934D priority Critical patent/AT20934B/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
DE1903151466D 1903-02-03 1903-02-03 Expired - Lifetime DE151466C (sk)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT20934D AT20934B (de) 1903-02-03 1904-01-25 Vorrichtung zum Zählen der Sprechzeit an Fernsprechstationen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE151466T

Publications (1)

Publication Number Publication Date
DE151466C true DE151466C (sk)

Family

ID=5674490

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1903151466D Expired - Lifetime DE151466C (sk) 1903-02-03 1903-02-03

Country Status (2)

Country Link
DE (1) DE151466C (sk)
FR (1) FR337643A (sk)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6825376B2 (en) 2001-12-14 2004-11-30 Bayer Aktiengesellschaft NCO prepolymers prepared from isophorone diisocyanate and having a low monomer content

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6825376B2 (en) 2001-12-14 2004-11-30 Bayer Aktiengesellschaft NCO prepolymers prepared from isophorone diisocyanate and having a low monomer content

Also Published As

Publication number Publication date
FR337643A (fr) 1904-04-18

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