FI31630A - Akustiskt filter - Google Patents

Akustiskt filter

Info

Publication number
FI31630A
FI31630A FI31630DA FI31630A FI 31630 A FI31630 A FI 31630A FI 31630D A FI31630D A FI 31630DA FI 31630 A FI31630 A FI 31630A
Authority
FI
Finland
Prior art keywords
acoustic filter
acoustic
filter
Prior art date
Application number
Other languages
English (en)
Inventor
Alfredsson Per-Olof
Original Assignee
Svenska Flaektfabriken Ab
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 Svenska Flaektfabriken Ab filed Critical Svenska Flaektfabriken Ab
Publication of FI31630A publication Critical patent/FI31630A/fi

Links

FI31630D 1955-10-15 1955-10-15 Akustiskt filter FI31630A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI31630T 1955-10-15

Publications (1)

Publication Number Publication Date
FI31630A true FI31630A (fi) 1961-01-11

Family

ID=36895842

Family Applications (1)

Application Number Title Priority Date Filing Date
FI31630D FI31630A (fi) 1955-10-15 1955-10-15 Akustiskt filter

Country Status (1)

Country Link
FI (1) FI31630A (fi)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583523A (en) * 1969-09-24 1971-06-08 Us Navy Boundary layer effect attenuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583523A (en) * 1969-09-24 1971-06-08 Us Navy Boundary layer effect attenuator

Similar Documents

Publication Publication Date Title
FR1157258A (fr) Perfectionnements aux filtres
CH346455A (fr) Stylographe
CH332401A (de) Schallabsorbierendes Bauelement
CH341735A (fr) Stylographe
CH361834A (de) Zeitfilter
FR1130459A (fr) Filtre
BE760649Q (fr) Thiazoleazodiphenylamines
CH330812A (de) Rauchwarenfilter
FR1304589A (fr) Transducteur
AT197139B (de) Luftfilter
CH333165A (de) Filterpresse
FR69447E (fr) Perfectionnements apportés aux filtres
FI31630A (fi) Akustiskt filter
CH340651A (fr) Décélérographe
FR1159266A (fr) Transducteur
FR1136737A (fr) Filtre
FR1160078A (fr) Filtres électromécaniques
ES47719Y (es) Filtro
FI28049A (fi) Filter
FR1154930A (fr) Filtres
FR1152133A (fr) Filtre
FR1154932A (fr) Filtre
FR1151458A (fr) Perfectionnements apportés aux filtres
CH350686A (de) Transfluxor
CH340130A (it) Foglio-busta