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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=5674490

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1903151466D Expired - Lifetime DE151466C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1903-02-03 1903-02-03

Country Status (2)

Country Link
DE (1) DE151466C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR337643A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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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