CA409821A - Indicateur de gaz combustible - Google Patents

Indicateur de gaz combustible

Info

Publication number
CA409821A
CA409821A CA409821A CA409821DA CA409821A CA 409821 A CA409821 A CA 409821A CA 409821 A CA409821 A CA 409821A CA 409821D A CA409821D A CA 409821DA CA 409821 A CA409821 A CA 409821A
Authority
CA
Canada
Prior art keywords
combustible gas
gas indicator
indicator
combustible
gas
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
CA409821A
Other languages
English (en)
Inventor
E. Hartline 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.)
MSA Safety Inc
Original Assignee
Mine Safety Appliances Co
Publication date
Application granted granted Critical
Publication of CA409821A publication Critical patent/CA409821A/fr
Expired legal-status Critical Current

Links

CA409821A Indicateur de gaz combustible Expired CA409821A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA409821T

Publications (1)

Publication Number Publication Date
CA409821A true CA409821A (fr) 1943-01-05

Family

ID=35421123

Family Applications (1)

Application Number Title Priority Date Filing Date
CA409821A Expired CA409821A (fr) Indicateur de gaz combustible

Country Status (1)

Country Link
CA (1) CA409821A (fr)

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