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3447216
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Information
Patent Grant
3447216
References
Source
Patent Number
3,447,216
Date Filed
Not available
Date Issued
Tuesday, June 3, 1969
55 years ago
CPC
E06B9/34 - roller-type; Roller shutters with adjustable lamellae
C03B5/1672 - Use of materials therefor
C03B5/1675 - Platinum group metals
E06B2009/17092 - Manufacturing
Y10T29/39 - Venetian blind assembling
US Classifications
029 - Metal working
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