CA660799A - Evacuation of vacuum and gas filled envelopes - Google Patents

Evacuation of vacuum and gas filled envelopes

Info

Publication number
CA660799A
CA660799A CA660799A CA660799DA CA660799A CA 660799 A CA660799 A CA 660799A CA 660799 A CA660799 A CA 660799A CA 660799D A CA660799D A CA 660799DA CA 660799 A CA660799 A CA 660799A
Authority
CA
Canada
Prior art keywords
evacuation
vacuum
gas filled
filled envelopes
envelopes
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
CA660799A
Inventor
H. O. Harries John
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA660799A publication Critical patent/CA660799A/en
Expired legal-status Critical Current

Links

CA660799A Evacuation of vacuum and gas filled envelopes Expired CA660799A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA660799T

Publications (1)

Publication Number Publication Date
CA660799A true CA660799A (en) 1963-04-09

Family

ID=35954910

Family Applications (1)

Application Number Title Priority Date Filing Date
CA660799A Expired CA660799A (en) Evacuation of vacuum and gas filled envelopes

Country Status (1)

Country Link
CA (1) CA660799A (en)

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