Document Type and Number:
Japanese Patent JPS50136999
Kind Code:
A
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| WO/2011/124377 | FIRE-PROTECTION OR SMOKE-PROTECTION DEVICE |
| JP4712441 | Fire protection sheet shutter |
Application Number:
JP4329174A
Publication Date:
October 30, 1975
Filing Date:
April 19, 1974
Export Citation:
International Classes:
A62C2/10; (IPC1-7): A62C2/02
Domestic Patent References:
| JPS249396Y1 |