CA931539A - Vacuumizing apparatus - Google Patents

Vacuumizing apparatus

Info

Publication number
CA931539A
CA931539A CA161549A CA161549A CA931539A CA 931539 A CA931539 A CA 931539A CA 161549 A CA161549 A CA 161549A CA 161549 A CA161549 A CA 161549A CA 931539 A CA931539 A CA 931539A
Authority
CA
Canada
Prior art keywords
vacuumizing apparatus
vacuumizing
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
CA161549A
Other versions
CA161549S (en
Inventor
J. Pruitt Larry
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.)
WR Grace and Co
Original Assignee
WR Grace and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CA116465A external-priority patent/CA929499A/en
Application filed by WR Grace and Co filed Critical WR Grace and Co
Priority to CA161549A priority Critical patent/CA931539A/en
Application granted granted Critical
Publication of CA931539A publication Critical patent/CA931539A/en
Expired legal-status Critical Current

Links

CA161549A 1970-12-03 1973-01-18 Vacuumizing apparatus Expired CA931539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA161549A CA931539A (en) 1970-12-03 1973-01-18 Vacuumizing apparatus

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US9477070A 1970-12-03 1970-12-03
CA116465A CA929499A (en) 1970-12-03 1971-06-23 Vacuumizing apparatus
CA161549A CA931539A (en) 1970-12-03 1973-01-18 Vacuumizing apparatus

Publications (1)

Publication Number Publication Date
CA931539A true CA931539A (en) 1973-08-07

Family

ID=25666831

Family Applications (2)

Application Number Title Priority Date Filing Date
CA161550A Expired CA931540A (en) 1970-12-03 1973-01-18 Vacuumizing apparatus
CA161549A Expired CA931539A (en) 1970-12-03 1973-01-18 Vacuumizing apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA161550A Expired CA931540A (en) 1970-12-03 1973-01-18 Vacuumizing apparatus

Country Status (1)

Country Link
CA (2) CA931540A (en)

Also Published As

Publication number Publication date
CA931540A (en) 1973-08-07

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