DE1390120U - - Google Patents

Info

Publication number

DE1390120U

DE1390120U DENDAT1390120D DE1390120DU DE1390120U DE 1390120 U DE1390120 U DE 1390120U DE NDAT1390120 D DENDAT1390120 D DE NDAT1390120D DE 1390120D U DE1390120D U DE 1390120DU DE 1390120 U DE1390120 U DE 1390120U

Authority

DE

Germany

Prior art keywords

ventilation

edge

vent

itself

flap

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.)

Active

Links

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• 238000009423 ventilation Methods 0.000 claims description 10
• 235000010678 Paulownia tomentosa Nutrition 0.000 claims description 2
• 240000002834 Paulownia tomentosa Species 0.000 claims description 2
• 239000004568 cement Substances 0.000 claims 1
• 239000000463 material Substances 0.000 claims 1
• 239000002184 metal Substances 0.000 description 2
• 238000010009 beating Methods 0.000 description 1
• 230000000740 bleeding effect Effects 0.000 description 1
• VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 description 1
• 238000013022 venting Methods 0.000 description 1