JPS51123135A - Piston phone - Google Patents

Piston phone

Info

Publication number
JPS51123135A
JPS51123135A JP4769375A JP4769375A JPS51123135A JP S51123135 A JPS51123135 A JP S51123135A JP 4769375 A JP4769375 A JP 4769375A JP 4769375 A JP4769375 A JP 4769375A JP S51123135 A JPS51123135 A JP S51123135A
Authority
JP
Japan
Prior art keywords
piston
phone
piston phone
ajustment
driven
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.)
Granted
Application number
JP4769375A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5433844B2 (OSRAM
Inventor
Hajime Kano
Kazuyoshi Sugimoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4769375A priority Critical patent/JPS51123135A/ja
Publication of JPS51123135A publication Critical patent/JPS51123135A/ja
Publication of JPS5433844B2 publication Critical patent/JPS5433844B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Pistons, Piston Rings, And Cylinders (AREA)
JP4769375A 1975-04-18 1975-04-18 Piston phone Granted JPS51123135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4769375A JPS51123135A (en) 1975-04-18 1975-04-18 Piston phone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4769375A JPS51123135A (en) 1975-04-18 1975-04-18 Piston phone

Publications (2)

Publication Number Publication Date
JPS51123135A true JPS51123135A (en) 1976-10-27
JPS5433844B2 JPS5433844B2 (OSRAM) 1979-10-23

Family

ID=12782354

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4769375A Granted JPS51123135A (en) 1975-04-18 1975-04-18 Piston phone

Country Status (1)

Country Link
JP (1) JPS51123135A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611982B (zh) * 2012-03-26 2014-06-11 浙江大学 传声器校准用夹具

Also Published As

Publication number Publication date
JPS5433844B2 (OSRAM) 1979-10-23

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