FR484357A - Automatic switching device for thermotelephones - Google Patents

Automatic switching device for thermotelephones

Info

Publication number
FR484357A
FR484357A FR484357DA FR484357A FR 484357 A FR484357 A FR 484357A FR 484357D A FR484357D A FR 484357DA FR 484357 A FR484357 A FR 484357A
Authority
FR
France
Prior art keywords
thermotelephones
switching device
automatic switching
automatic
switching
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
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NAAMLOOZE VENNOOTSGHAP DE NL T
Original Assignee
NAAMLOOZE VENNOOTSGHAP DE NL T
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 NAAMLOOZE VENNOOTSGHAP DE NL T filed Critical NAAMLOOZE VENNOOTSGHAP DE NL T
Application granted granted Critical
Publication of FR484357A publication Critical patent/FR484357A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/06—Hooks; Cradles
    • H04M1/08—Hooks; Cradles associated with switches operated by the weight of the receiver or hand-set

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR484357D 1916-02-16 1917-01-30 Automatic switching device for thermotelephones Expired FR484357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE484357X 1916-02-16

Publications (1)

Publication Number Publication Date
FR484357A true FR484357A (en) 1917-10-02

Family

ID=1521161

Family Applications (1)

Application Number Title Priority Date Filing Date
FR484357D Expired FR484357A (en) 1916-02-16 1917-01-30 Automatic switching device for thermotelephones

Country Status (1)

Country Link
FR (1) FR484357A (en)

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