CH18412A - Building block for chimneys and ventilation ducts - Google Patents

Building block for chimneys and ventilation ducts

Info

Publication number: CH18412A
Authority: CH; Switzerland
Prior art keywords: chimneys; building block; ventilation ducts; ducts; ventilation
Prior art date: 1898-12-27

Application number

CH18412A

Other languages

German (de)

Inventor

Wilh Heitmann

Original Assignee

Wilh Heitmann

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.)

1898-12-27

Filing date

1898-12-27

Publication date

1900-01-15

1898-12-27 Application filed by Wilh Heitmann filed Critical Wilh Heitmann

1900-01-15 Publication of CH18412A publication Critical patent/CH18412A/en

Links

238000009423 ventilation Methods 0.000 title 1

CH18412A 1898-12-27 1898-12-27 Building block for chimneys and ventilation ducts CH18412A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH18412T		1898-12-27

Publications (1)

Publication Number	Publication Date
CH18412A true CH18412A (en)	1900-01-15

Family

ID=4219840

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH18412A CH18412A (en)	1898-12-27	1898-12-27	Building block for chimneys and ventilation ducts

Country Status (1)

Country	Link
CH (1)	CH18412A (en)

1898
- 1898-12-27 CH CH18412A patent/CH18412A/en unknown

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