CA887236A - Sound attenuating earcups - Google Patents

Sound attenuating earcups

Info

Publication number
CA887236A
CA887236A CA887236A CA887236DA CA887236A CA 887236 A CA887236 A CA 887236A CA 887236 A CA887236 A CA 887236A CA 887236D A CA887236D A CA 887236DA CA 887236 A CA887236 A CA 887236A
Authority
CA
Canada
Prior art keywords
sound attenuating
earcups
attenuating earcups
sound
attenuating
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
CA887236A
Inventor
A. Aileo Jackson
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.)
Gentex Corp
Original Assignee
Gentex Corp
Publication date
Application granted granted Critical
Publication of CA887236A publication Critical patent/CA887236A/en
Expired legal-status Critical Current

Links

CA887236A Sound attenuating earcups Expired CA887236A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA887236T

Publications (1)

Publication Number Publication Date
CA887236A true CA887236A (en) 1971-11-30

Family

ID=36393481

Family Applications (1)

Application Number Title Priority Date Filing Date
CA887236A Expired CA887236A (en) Sound attenuating earcups

Country Status (1)

Country Link
CA (1) CA887236A (en)

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