FR6738E - Microphone avec accessoires - Google Patents

Microphone avec accessoires

Info

Publication number
FR6738E
FR6738E FR6738A FR6738DA FR6738E FR 6738 E FR6738 E FR 6738E FR 6738 A FR6738 A FR 6738A FR 6738D A FR6738D A FR 6738DA FR 6738 E FR6738 E FR 6738E
Authority
FR
France
Prior art keywords
accessories
microphone
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
FR6738A
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.)
SOC IND DES TELEPHONES CONSTR
Original Assignee
SOC IND DES TELEPHONES CONSTR
Publication date
Application granted granted Critical
Publication of FR6738E publication Critical patent/FR6738E/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
FR6738A Microphone avec accessoires Expired FR6738E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6738T

Publications (1)

Publication Number Publication Date
FR6738E true FR6738E (fr) 1907-02-08

Family

ID=8612053

Family Applications (3)

Application Number Title Priority Date Filing Date
FR19724A Expired FR19724E (fr) Microphone avec accessoires
FR6738A Expired FR6738E (fr) Microphone avec accessoires
FR365127A Expired FR365127A (fr) 1906-03-17 Microphone avec accessoires

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR19724A Expired FR19724E (fr) Microphone avec accessoires

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR365127A Expired FR365127A (fr) 1906-03-17 Microphone avec accessoires

Country Status (1)

Country Link
FR (3) FR365127A (fr)

Also Published As

Publication number Publication date
FR365127A (fr) 1906-09-04
FR19724E (fr) 1915-07-06

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