CA230460A - Trench heater - Google Patents

Trench heater

Info

Publication number
CA230460A
CA230460A CA230460A CA230460DA CA230460A CA 230460 A CA230460 A CA 230460A CA 230460 A CA230460 A CA 230460A CA 230460D A CA230460D A CA 230460DA CA 230460 A CA230460 A CA 230460A
Authority
CA
Canada
Prior art keywords
trench
heater
trench heater
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
CA230460A
Other languages
French (fr)
Inventor
Hoffman Rudolf
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.)
Sears Roebuck and Co
Original Assignee
Sears Roebuck and Co
Publication date
Application granted granted Critical
Publication of CA230460A publication Critical patent/CA230460A/en
Expired legal-status Critical Current

Links

CA230460A Trench heater Expired CA230460A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA230460T

Publications (1)

Publication Number Publication Date
CA230460A true CA230460A (en) 1923-04-17

Family

ID=35127833

Family Applications (1)

Application Number Title Priority Date Filing Date
CA230460A Expired CA230460A (en) Trench heater

Country Status (1)

Country Link
CA (1) CA230460A (en)

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