FR322670A - Hygienic combined micro-telephone device - Google Patents

Hygienic combined micro-telephone device

Info

Publication number
FR322670A
FR322670A FR322670DA FR322670A FR 322670 A FR322670 A FR 322670A FR 322670D A FR322670D A FR 322670DA FR 322670 A FR322670 A FR 322670A
Authority
FR
France
Prior art keywords
hygienic
telephone device
combined micro
micro
combined
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)
Inventor
Delfour Pierre-Adrien
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.)
DELFOUR PIERRE ADRIEN
Original Assignee
DELFOUR PIERRE ADRIEN
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 DELFOUR PIERRE ADRIEN filed Critical DELFOUR PIERRE ADRIEN
Application granted granted Critical
Publication of FR322670A publication Critical patent/FR322670A/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
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR322670D 1902-06-30 1902-06-30 Hygienic combined micro-telephone device Expired FR322670A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR322670T 1902-06-30

Publications (1)

Publication Number Publication Date
FR322670A true FR322670A (en) 1903-02-10

Family

ID=1373012

Family Applications (1)

Application Number Title Priority Date Filing Date
FR322670D Expired FR322670A (en) 1902-06-30 1902-06-30 Hygienic combined micro-telephone device

Country Status (1)

Country Link
FR (1) FR322670A (en)

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