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CA615458A - Ear plug - Google Patents

Ear plug

Info

Publication number
CA615458A
CA615458A CA615458A CA615458DA CA615458A CA 615458 A CA615458 A CA 615458A CA 615458 A CA615458 A CA 615458A CA 615458D A CA615458D A CA 615458DA CA 615458 A CA615458 A CA 615458A
Authority
CA
Canada
Prior art keywords
ear plug
ear
plug
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
CA615458A
Inventor
P. Strange John
L. Michael Paul
Borsh Joseph
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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
Publication date
Application granted granted Critical
Publication of CA615458A publication Critical patent/CA615458A/en
Expired legal-status Critical Current

Links

CA615458A Ear plug Expired CA615458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA615458T

Publications (1)

Publication Number Publication Date
CA615458A true CA615458A (en) 1961-02-28

Family

ID=35857764

Family Applications (1)

Application Number Title Priority Date Filing Date
CA615458A Expired CA615458A (en) Ear plug

Country Status (1)

Country Link
CA (1) CA615458A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452731A (en) * 1994-10-25 1995-09-26 Dickman; Donald E. Disposable, hygroscopic ear plug including tear-away portion

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452731A (en) * 1994-10-25 1995-09-26 Dickman; Donald E. Disposable, hygroscopic ear plug including tear-away portion

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