CA97944A - Plaque heliochromique - Google Patents

Plaque heliochromique

Info

Publication number
CA97944A
CA97944A CA000097944A CA97944DA CA97944A CA 97944 A CA97944 A CA 97944A CA 000097944 A CA000097944 A CA 000097944A CA 97944D A CA97944D A CA 97944DA CA 97944 A CA97944 A CA 97944A
Authority
CA
Canada
Prior art keywords
heliochromic
plate
heliochromic plate
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
CA000097944A
Other languages
English (en)
Inventor
John H. Powrie
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
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA97944A publication Critical patent/CA97944A/fr
Expired legal-status Critical Current

Links

CA000097944A 1905-11-27 1905-11-27 Plaque heliochromique Expired CA97944A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA97944T 1905-11-27

Publications (1)

Publication Number Publication Date
CA97944A true CA97944A (fr) 1906-03-13

Family

ID=45214478

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000097944A Expired CA97944A (fr) 1905-11-27 1905-11-27 Plaque heliochromique

Country Status (1)

Country Link
CA (1) CA97944A (fr)

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