CA835705A - Board perforator and cutter - Google Patents

Board perforator and cutter

Info

Publication number
CA835705A
CA835705A CA835705A CA835705DA CA835705A CA 835705 A CA835705 A CA 835705A CA 835705 A CA835705 A CA 835705A CA 835705D A CA835705D A CA 835705DA CA 835705 A CA835705 A CA 835705A
Authority
CA
Canada
Prior art keywords
cutter
perforator
board
board perforator
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
CA835705A
Inventor
L. Donahe Leonard
D. Welch George
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.)
National Gypsum Co
Original Assignee
National Gypsum Co
Publication date
Application granted granted Critical
Publication of CA835705A publication Critical patent/CA835705A/en
Expired legal-status Critical Current

Links

CA835705A Board perforator and cutter Expired CA835705A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA835705T

Publications (1)

Publication Number Publication Date
CA835705A true CA835705A (en) 1970-03-03

Family

ID=36313160

Family Applications (1)

Application Number Title Priority Date Filing Date
CA835705A Expired CA835705A (en) Board perforator and cutter

Country Status (1)

Country Link
CA (1) CA835705A (en)

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