FR841322A - Improvements to phonographic players and other similar devices - Google Patents

Improvements to phonographic players and other similar devices

Info

Publication number
FR841322A
FR841322A FR841322DA FR841322A FR 841322 A FR841322 A FR 841322A FR 841322D A FR841322D A FR 841322DA FR 841322 A FR841322 A FR 841322A
Authority
FR
France
Prior art keywords
phonographic
players
similar devices
similar
devices
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR841322A publication Critical patent/FR841322A/en
Expired legal-status Critical Current

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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
FR841322D 1937-07-28 1938-07-28 Improvements to phonographic players and other similar devices Expired FR841322A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE207878X 1937-07-28

Publications (1)

Publication Number Publication Date
FR841322A true FR841322A (en) 1939-05-17

Family

ID=5793934

Family Applications (1)

Application Number Title Priority Date Filing Date
FR841322D Expired FR841322A (en) 1937-07-28 1938-07-28 Improvements to phonographic players and other similar devices

Country Status (6)

Country Link
US (1) US2240918A (en)
BE (1) BE429396A (en)
CH (1) CH207878A (en)
FR (1) FR841322A (en)
GB (1) GB510297A (en)
NL (1) NL54031C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473650A (en) * 1943-06-10 1949-06-21 Zenith Radio Corp Phonograph pickup with mechanical filter
US2547361A (en) * 1947-05-19 1951-04-03 Donald J Baker Pickup head using torsional mount for armatures
US2622156A (en) * 1949-01-27 1952-12-16 Donald J Baker Pickup head with removable armature and stylus assembly
US2637920A (en) * 1949-04-28 1953-05-12 Richard H Hallsted Barrier for motor vehicle parking systems
NL251609A (en) * 1959-05-21

Also Published As

Publication number Publication date
US2240918A (en) 1941-05-06
BE429396A (en)
GB510297A (en) 1939-07-31
NL54031C (en)
CH207878A (en) 1939-12-15

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