NO130256B - - Google Patents

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Publication number
NO130256B
NO130256B NO02166/72A NO216672A NO130256B NO 130256 B NO130256 B NO 130256B NO 02166/72 A NO02166/72 A NO 02166/72A NO 216672 A NO216672 A NO 216672A NO 130256 B NO130256 B NO 130256B
Authority
NO
Norway
Prior art keywords
progesterone
acetoxy
hydroxy
acid
acyloxy
Prior art date
Application number
NO02166/72A
Other languages
English (en)
Norwegian (no)
Inventor
D Fischer
J Wittkowski
Original Assignee
Willco Gmbh
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 Willco Gmbh filed Critical Willco Gmbh
Publication of NO130256B publication Critical patent/NO130256B/no

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Steroid Compounds (AREA)
  • Building Environments (AREA)
NO02166/72A 1971-06-22 1972-06-16 NO130256B (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2130887 1971-06-22

Publications (1)

Publication Number Publication Date
NO130256B true NO130256B (https=) 1974-07-29

Family

ID=5811444

Family Applications (1)

Application Number Title Priority Date Filing Date
NO02166/72A NO130256B (https=) 1971-06-22 1972-06-16

Country Status (8)

Country Link
BE (1) BE784997A (https=)
CH (1) CH547048A (https=)
DE (1) DE2130887B1 (https=)
ES (1) ES404091A1 (https=)
FR (1) FR2143320A1 (https=)
IT (1) IT965841B (https=)
NL (1) NL7208049A (https=)
NO (1) NO130256B (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2531299B1 (fr) * 1982-08-02 1986-07-18 Depaepe Sa Henri Transducteur acousto-electrique, notamment pour microphone piezoelectrique
DE3807251A1 (de) * 1988-03-05 1989-09-14 Sennheiser Electronic Kapazitiver schallwandler

Also Published As

Publication number Publication date
ES404091A1 (es) 1975-05-16
IT965841B (it) 1974-02-11
NL7208049A (https=) 1972-12-28
DE2130887B1 (de) 1972-09-07
BE784997A (fr) 1972-10-16
CH547048A (de) 1974-03-15
FR2143320A1 (https=) 1973-02-02

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