Patent classifications
E
FIXED CONSTRUCTIONS
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E05
LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
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E05C
BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
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5/00
Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
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E05C5/02
both moving axially and turning about their axis to secure the wing
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