FR1139434A - Flattened zig-zag refractory metal filaments - Google Patents

Flattened zig-zag refractory metal filaments

Info

Publication number
FR1139434A
FR1139434A FR1139434DA FR1139434A FR 1139434 A FR1139434 A FR 1139434A FR 1139434D A FR1139434D A FR 1139434DA FR 1139434 A FR1139434 A FR 1139434A
Authority
FR
France
Prior art keywords
zag
zig
flattened
refractory metal
metal filaments
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Application granted granted Critical
Publication of FR1139434A publication Critical patent/FR1139434A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/04—Incandescent bodies characterised by the material thereof
    • H01K1/08—Metallic bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
FR1139434D 1954-12-23 1955-12-02 Flattened zig-zag refractory metal filaments Expired FR1139434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1138987X 1954-12-23

Publications (1)

Publication Number Publication Date
FR1139434A true FR1139434A (en) 1957-07-01

Family

ID=20420808

Family Applications (2)

Application Number Title Priority Date Filing Date
FR1139434D Expired FR1139434A (en) 1954-12-23 1955-12-02 Flattened zig-zag refractory metal filaments
FR1138987D Expired FR1138987A (en) 1954-12-23 1955-12-19 Control device for prepayment box

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR1138987D Expired FR1138987A (en) 1954-12-23 1955-12-19 Control device for prepayment box

Country Status (2)

Country Link
FR (2) FR1139434A (en)
NL (2) NL202866A (en)

Also Published As

Publication number Publication date
NL202866A (en)
NL96918C (en)
FR1138987A (en) 1957-06-24

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