CA644633A - Safety-tank drill - Google Patents

Safety-tank drill

Info

Publication number
CA644633A
CA644633A CA644633A CA644633DA CA644633A CA 644633 A CA644633 A CA 644633A CA 644633 A CA644633 A CA 644633A CA 644633D A CA644633D A CA 644633DA CA 644633 A CA644633 A CA 644633A
Authority
CA
Canada
Prior art keywords
safety
drill
tank
tank drill
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
CA644633A
Inventor
L. Heideman Irvin
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.)
Pettibone Traverse Lift LLC
Original Assignee
Pettibone Mulliken Corp
Publication date
Application granted granted Critical
Publication of CA644633A publication Critical patent/CA644633A/en
Expired legal-status Critical Current

Links

CA644633A Safety-tank drill Expired CA644633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA644633T

Publications (1)

Publication Number Publication Date
CA644633A true CA644633A (en) 1962-07-10

Family

ID=35933289

Family Applications (1)

Application Number Title Priority Date Filing Date
CA644633A Expired CA644633A (en) Safety-tank drill

Country Status (1)

Country Link
CA (1) CA644633A (en)

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