NL182555B - PROCESS FOR THE MANUFACTURE OF ALŸ2OŸ3 AGGLOMERATES WITH HIGH MECHANICAL RESISTANCE. - Google Patents

PROCESS FOR THE MANUFACTURE OF ALŸ2OŸ3 AGGLOMERATES WITH HIGH MECHANICAL RESISTANCE.

Info

Publication number
NL182555B
NL182555B NLAANVRAGE7708198,B NL182555DB NL182555B NL 182555 B NL182555 B NL 182555B NL 182555D B NL182555D B NL 182555DB NL 182555 B NL182555 B NL 182555B
Authority
NL
Netherlands
Prior art keywords
alÿ2oÿ3
agglomerates
manufacture
high mechanical
mechanical resistance
Prior art date
Application number
NLAANVRAGE7708198,B
Other languages
Dutch (nl)
Original Assignee
Pechiney Aluminium
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.)
Publication of NL182555B publication Critical patent/NL182555B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
NLAANVRAGE7708198,B 1952-11-07 PROCESS FOR THE MANUFACTURE OF ALŸ2OŸ3 AGGLOMERATES WITH HIGH MECHANICAL RESISTANCE. NL182555B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE321708X 1952-11-07

Publications (1)

Publication Number Publication Date
NL182555B true NL182555B (en)

Family

ID=6162943

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7708198,B NL182555B (en) 1952-11-07 PROCESS FOR THE MANUFACTURE OF ALŸ2OŸ3 AGGLOMERATES WITH HIGH MECHANICAL RESISTANCE.
NL86513D NL86513C (en) 1952-11-07

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL86513D NL86513C (en) 1952-11-07

Country Status (4)

Country Link
BE (1) BE524124A (en)
CH (1) CH321708A (en)
FR (1) FR1086665A (en)
NL (2) NL86513C (en)

Also Published As

Publication number Publication date
CH321708A (en) 1957-05-15
FR1086665A (en) 1955-02-15
NL86513C (en)
BE524124A (en)

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