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E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
E05D13/10—Counterbalance devices
E05D13/14—Counterbalance devices with weights
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FR759730D1932-08-161933-08-11Perfectionnements apportés aux fenêtres à éléments coulissants et équilibrés,notamment aux fenêtres à guillotine
ExpiredFR759730A
(fr)