FR15409E - Nouveau polyphone - Google Patents

Nouveau polyphone

Info

Publication number
FR15409E
FR15409E FR15409A FR15409DA FR15409E FR 15409 E FR15409 E FR 15409E FR 15409 A FR15409 A FR 15409A FR 15409D A FR15409D A FR 15409DA FR 15409 E FR15409 E FR 15409E
Authority
FR
France
Prior art keywords
polyphone
new
new polyphone
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
FR15409A
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
Publication date
Application granted granted Critical
Publication of FR15409E publication Critical patent/FR15409E/fr
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
    • 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
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR15409A Nouveau polyphone Expired FR15409E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR15657T

Publications (1)

Publication Number Publication Date
FR15409E true FR15409E (fr) 1912-07-04

Family

ID=8651654

Family Applications (4)

Application Number Title Priority Date Filing Date
FR17091A Expired FR17091E (fr) Nouveau polyphone
FR15409A Expired FR15409E (fr) Nouveau polyphone
FR15657A Expired FR15657E (fr) Nouveau polyphone
FR437979A Expired FR437979A (fr) 1911-03-03 Nouveau polyphone

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR17091A Expired FR17091E (fr) Nouveau polyphone

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR15657A Expired FR15657E (fr) Nouveau polyphone
FR437979A Expired FR437979A (fr) 1911-03-03 Nouveau polyphone

Country Status (1)

Country Link
FR (4) FR437979A (fr)

Also Published As

Publication number Publication date
FR15657E (fr) 1912-08-30
FR17091E (fr) 1913-06-19
FR437979A (fr) 1912-05-04

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