FR339421A - Improvements to phones - Google Patents

Improvements to phones

Info

Publication number
FR339421A
FR339421A FR339421A FR339421DA FR339421A FR 339421 A FR339421 A FR 339421A FR 339421 A FR339421 A FR 339421A FR 339421D A FR339421D A FR 339421DA FR 339421 A FR339421 A FR 339421A
Authority
FR
France
Prior art keywords
phones
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
FR339421A
Other languages
French (fr)
Inventor
Hope Redmon
Rufus Lail Hall
Robert Haviland Conway
Newton Frank Smith
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.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR339421A publication Critical patent/FR339421A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
FR339421A 1904-01-11 Improvements to phones Expired FR339421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR339421T

Publications (1)

Publication Number Publication Date
FR339421A true FR339421A (en) 1904-06-09

Family

ID=8891687

Family Applications (1)

Application Number Title Priority Date Filing Date
FR339421A Expired FR339421A (en) 1904-01-11 Improvements to phones

Country Status (2)

Country Link
DE (1) DE159457C (en)
FR (1) FR339421A (en)

Also Published As

Publication number Publication date
DE159457C (en)

Similar Documents

Publication Publication Date Title
FR349635A (en) Improvements to explosives
FR358981A (en) Improvements to corsets
FR339421A (en) Improvements to phones
FR353468A (en) Improvements to telephone auto-switches
FR339455A (en) Improvements to jealousies
FR343255A (en) Improvements to velocipeds
FR345775A (en) Improvements to aviaplanes
FR348690A (en) Improvements to the rides
FR343215A (en) Improvements to telephone receivers
FR339439A (en) Improvements to secateurs
FR352047A (en) Improvements to suspenders
FR343214A (en) Improvements to electrical block-systems
FR350371A (en) Improvements to explosives
FR339682A (en) Improvements to telephone devices
FR350203A (en) Phone enhancements
FR347411A (en) Improvements to perforators
FR345466A (en) Improvements to gasifiers
FR344102A (en) Improvements to gasifiers
FR345095A (en) Improvements to gasifiers
FR358681A (en) Improvements to phonographs
FR352306A (en) Improvements to phonographs
FR340640A (en) Improvements made to scales
FR339712A (en) Improvements to presses
FR340065A (en) Improvements to sinks
FR344718A (en) Improvements to pyrometers