DE107552A - - Google Patents

Info

Publication number

DE107552A

DE107552A DE107552A DE 107552 A DE107552 A DE 107552A DE 107552 A DE107552 A DE 107552A

Authority

DE

Germany

Prior art keywords

ring

chimney

way

weakened

strip

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.)

Pending

Links

• Espacenet
• Global Dossier
• DPMA
• Discuss

• 239000002184 metal Substances 0.000 claims description 4
• 238000005096 rolling process Methods 0.000 claims 1
• 239000007787 solid Substances 0.000 claims 1
• 230000006835 compression Effects 0.000 description 4
• 238000007906 compression Methods 0.000 description 4
• 239000004575 stone Substances 0.000 description 2
• 239000010425 asbestos Substances 0.000 description 1
• 239000004927 clay Substances 0.000 description 1
• 239000000463 material Substances 0.000 description 1
• 229910052895 riebeckite Inorganic materials 0.000 description 1
• 238000004904 shortening Methods 0.000 description 1