JPS529304A - Transmitter-receiver - Google Patents

Transmitter-receiver

Info

Publication number
JPS529304A
JPS529304A JP8502175A JP8502175A JPS529304A JP S529304 A JPS529304 A JP S529304A JP 8502175 A JP8502175 A JP 8502175A JP 8502175 A JP8502175 A JP 8502175A JP S529304 A JPS529304 A JP S529304A
Authority
JP
Japan
Prior art keywords
transmitter
receiver
congress
surely
person
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.)
Pending
Application number
JP8502175A
Other languages
Japanese (ja)
Inventor
Tadashi Sato
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.)
TOWA ENG KK
Original Assignee
TOWA ENG KK
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 TOWA ENG KK filed Critical TOWA ENG KK
Priority to JP8502175A priority Critical patent/JPS529304A/en
Publication of JPS529304A publication Critical patent/JPS529304A/en
Pending 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
    • H04R27/00—Public address systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To transmit speech of each person to another effectively and surely in a congress or for some purpose through a mechanical or electrical switching operation.
JP8502175A 1975-07-11 1975-07-11 Transmitter-receiver Pending JPS529304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8502175A JPS529304A (en) 1975-07-11 1975-07-11 Transmitter-receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8502175A JPS529304A (en) 1975-07-11 1975-07-11 Transmitter-receiver

Publications (1)

Publication Number Publication Date
JPS529304A true JPS529304A (en) 1977-01-24

Family

ID=13847064

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8502175A Pending JPS529304A (en) 1975-07-11 1975-07-11 Transmitter-receiver

Country Status (1)

Country Link
JP (1) JPS529304A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712501U (en) * 1993-08-06 1995-03-03 東洋石材株式会社 Natural stone paving stones

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4836708B1 (en) * 1969-10-27 1973-11-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4836708B1 (en) * 1969-10-27 1973-11-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0712501U (en) * 1993-08-06 1995-03-03 東洋石材株式会社 Natural stone paving stones

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