CA577014A - Sound level meter attenuator system - Google Patents

Sound level meter attenuator system

Info

Publication number
CA577014A
CA577014A CA577014A CA577014DA CA577014A CA 577014 A CA577014 A CA 577014A CA 577014 A CA577014 A CA 577014A CA 577014D A CA577014D A CA 577014DA CA 577014 A CA577014 A CA 577014A
Authority
CA
Canada
Prior art keywords
level meter
sound level
attenuator system
attenuator
sound
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
CA577014A
Other languages
French (fr)
Inventor
E. Allison Ralph
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.)
Patent Management Inc
Original Assignee
Patent Management Inc
Publication date
Application granted granted Critical
Publication of CA577014A publication Critical patent/CA577014A/en
Expired legal-status Critical Current

Links

CA577014A Sound level meter attenuator system Expired CA577014A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA577014T

Publications (1)

Publication Number Publication Date
CA577014A true CA577014A (en) 1959-06-02

Family

ID=35752873

Family Applications (1)

Application Number Title Priority Date Filing Date
CA577014A Expired CA577014A (en) Sound level meter attenuator system

Country Status (1)

Country Link
CA (1) CA577014A (en)

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